From nobody Mon Oct 5 13:43:34 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hz0w65L7cz6jsn5 for ; Mon, 05 Oct 2026 13:43:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hz0w64cPYz4sRh for ; Mon, 05 Oct 2026 13:43:34 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1791207814; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; 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Mon, 5 Oct 2026 13:43:34 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 695DhYmt014556 for net@FreeBSD.org; Mon, 5 Oct 2026 13:43:34 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 299065] LINT builds are failing on aarch64/amd64 due to missing symbols with if_bnxt driver Date: Mon, 05 Oct 2026 13:43:34 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: ssaxena@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D299065 --- Comment #1 from Sumit Saxena --- The following commit has been cherry-picked into stable/15 and should resol= ve this issue: 8bf2795588c3 - stable/15 - bnxt_en: add bnxt_sriov.c to sys/conf/files for built-in kernel builds --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Mon Oct 5 15:41:00 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hz3Wd1tKgz6k3Wv for ; 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mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4hz3Wd0RN1zQWZ for ; Mon, 05 Oct 2026 15:41:01 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 695Ff1bT091598 for ; Mon, 5 Oct 2026 15:41:01 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 695Ff1ts091597 for net@FreeBSD.org; Mon, 5 Oct 2026 15:41:01 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 299065] LINT builds are failing on aarch64/amd64 due to missing symbols with if_bnxt driver Date: Mon, 05 Oct 2026 15:41:00 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: ngie@FreeBSD.org X-Bugzilla-Status: Closed X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: ssaxena@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: assigned_to resolution bug_status Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D299065 Enji Cooper changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|net@FreeBSD.org |ssaxena@FreeBSD.org Resolution|--- |FIXED Status|New |Closed --- Comment #2 from Enji Cooper --- Confirmed fixed -- thank you ssaxena! https://ci.freebsd.org/job/FreeBSD-stable-15-aarch64-LINT/1255/ --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Tue Oct 6 14:27:33 2026 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hzdrg3X37z6vQb2 for ; 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(paulo@nlink.com.br) by smtpa.nlink.com.br with ESMTPSA (TLS_AES_128_GCM_SHA256 encrypted, authenticated); 6 Oct 2026 11:27:35 -0300 Message-ID: Date: Tue, 6 Oct 2026 11:27:33 -0300 List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: freebsd-net@freebsd.org From: Paulo Fragoso Subject: Review request: D60083 libalias: index fully specified inbound links by remote endpoint Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spamd-Bar: / X-Spamd-Result: default: False [-0.80 / 15.00]; DMARC_POLICY_ALLOW(-0.50)[nlink.com.br,reject]; ONCE_RECEIVED(0.20)[]; R_DKIM_ALLOW(-0.20)[nlink.com.br:s=default]; R_SPF_ALLOW(-0.20)[+ip4:187.87.129.0/24]; MIME_GOOD(-0.10)[text/plain]; RCPT_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:28585, ipnet:187.87.128.0/22, country:BR]; RCVD_COUNT_ONE(0.00)[1]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_NONE(0.00)[]; DKIM_TRACE(0.00)[nlink.com.br:+] X-Rspamd-Queue-Id: 4hzdrc09vkz4Scs Hi, I would like to ask for reviews of D60083: https://reviews.freebsd.org/D60083 Problem With ipfw nat (or ng_nat) and redirect_addr / redirect_port in front of a simple web service, every inbound connection to public:443 creates a link with alias_port = 443. All of them land in the same group_in, and _FindLinkIn() walks that group's grp->full list linearly for every packet. This hit a production hosting datacenter where I work as a consultant: one network thread was pinned at 100% with only a few hundred packets per second. We could not find the cause at the time. First we moved from ipfw to pf, and later the service was moved off FreeBSD to Debian/Proxmox. The datacenter lost a customer because of it. I found the root cause only later (two and half years later, with the application's source code and a lab that reproduces it. The behaviour is old: the same grouping existed in the pre-2021 hash table, as far back as libalias 1.0/2.1. Anyone running ipfw nat with redirects in front of a busy service can hit it. Change grp->full becomes an RB tree keyed by (dst_addr, dst_port), with a per-instance sequence number as a newest-first tie-break. That keeps the current semantics when several links share the same remote endpoint (3_natin:2_portoverlap depends on it). Partially specified links keep the existing list. The new field in struct libalias is appended at the end, because ipfw_nat.ko and ng_nat.ko read logDesc/packetAliasMode directly through alias_local.h. Results (16.0-CURRENT, VNET jails over epair, SYNs to one redirected port, 1000 pps): stock (~170k links) patched (~141k links) LibAliasIn per packet 1 to 2 ms 2 to 4 us packets per 10 s ~7,200 (saturated) ~10,000 (all offered) epair_task CPU 99% 0.0 to 0.15% Userland, 100k links in one group: a new SYN goes from about 1.25 ms to about 600 ns it was really fast. I also have a backport to 14.0 tested in userland. adrian@ accepted it and asked for more networking people to look at it. I am happy to run more tests, for example ng_nat or UDP endpoint independent mapping, if anyone has a scenario in mind. Thanks, Paulo Fragoso From nobody Tue Oct 6 23:30:36 2026 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hzsvD4SCkz6jsmB for ; Tue, 06 Oct 2026 23:30:48 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qv1-f51.google.com (mail-qv1-f51.google.com [209.85.219.51]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hzsvC3WJbz3KhL for ; Tue, 06 Oct 2026 23:30:47 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Authentication-Results: mx1.freebsd.org; dkim=none; arc=pass ("google.com:s=arc-20260327:i=1"); spf=pass (mx1.freebsd.org: domain of adrian.chadd@gmail.com designates 209.85.219.51 as permitted sender) smtp.mailfrom=adrian.chadd@gmail.com; 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Tue, 06 Oct 2026 16:30:46 -0700 (PDT) List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 References: In-Reply-To: From: Adrian Chadd Date: Tue, 6 Oct 2026 16:30:36 -0700 X-Gm-Features: AclHuK9Ha8fxAY_yDp0tB0fRhSX4vNEPCougQO-QUa-PGwj0D20qAkkCjSD7feM Message-ID: Subject: Re: Review request: D60083 libalias: index fully specified inbound links by remote endpoint To: Paulo Fragoso Cc: freebsd-net@freebsd.org Content-Type: multipart/alternative; boundary="00000000000054b1b5065d346365" X-Spamd-Bar: / X-Spamd-Result: default: False [-0.90 / 15.00]; ARC_ALLOW(-1.00)[google.com:s=arc-20260327:i=1]; FORGED_SENDER(0.30)[adrian@freebsd.org,adrianchadd@gmail.com]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; DMARC_POLICY_SOFTFAIL(0.10)[freebsd.org : SPF not aligned (relaxed), No valid DKIM,none]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.85.219.51:from]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; RCPT_COUNT_TWO(0.00)[2]; RCVD_COUNT_ONE(0.00)[1]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; ALIAS_RESOLVED(0.00)[]; FROM_NEQ_ENVFROM(0.00)[adrian@freebsd.org,adrianchadd@gmail.com]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_SOME(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; MISSING_XM_UA(0.00)[]; RCVD_TLS_LAST(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[209.85.219.51:from] X-Rspamd-Queue-Id: 4hzsvC3WJbz3KhL --00000000000054b1b5065d346365 Content-Type: text/plain; charset="UTF-8" hi! I'm happy to land it if no-one has any objections. -adrian On Tue, 6 Oct 2026 at 07:28, Paulo Fragoso wrote: > Hi, > > I would like to ask for reviews of D60083: > > https://reviews.freebsd.org/D60083 > > Problem > > With ipfw nat (or ng_nat) and redirect_addr / redirect_port in front > of a simple web service, every inbound connection to public:443 creates > a link with alias_port = 443. All of them land in the same group_in, > and _FindLinkIn() walks that group's grp->full list linearly for every > packet. > > This hit a production hosting datacenter where I work as a > consultant: one network thread was pinned at 100% with only a few > hundred packets per second. We could not find the cause at the time. > First we moved from ipfw to pf, and later the service was moved off > FreeBSD to Debian/Proxmox. The datacenter lost a customer because of > it. I found the root cause only later (two and half years later, > with the application's source code and a lab that reproduces it. > > The behaviour is old: the same grouping existed in the pre-2021 hash > table, as far back as libalias 1.0/2.1. Anyone running ipfw nat with > redirects in front of a busy service can hit it. > > Change > > grp->full becomes an RB tree keyed by (dst_addr, dst_port), with a > per-instance sequence number as a newest-first tie-break. That keeps > the current semantics when several links share the same remote > endpoint (3_natin:2_portoverlap depends on it). Partially specified > links keep the existing list. The new field in struct libalias is > appended at the end, because ipfw_nat.ko and ng_nat.ko read > logDesc/packetAliasMode directly through alias_local.h. > > Results (16.0-CURRENT, VNET jails over epair, SYNs to one redirected > port, 1000 pps): > > stock (~170k links) patched (~141k links) > LibAliasIn per packet 1 to 2 ms 2 to 4 us > packets per 10 s ~7,200 (saturated) ~10,000 (all offered) > epair_task CPU 99% 0.0 to 0.15% > > Userland, 100k links in one group: a new SYN goes from about 1.25 ms > to about 600 ns it was really fast. > > I also have a backport to 14.0 tested in userland. > > adrian@ accepted it and asked for more networking people to look at > it. I am happy to run more tests, for example ng_nat or UDP endpoint > independent mapping, if anyone has a scenario in mind. > > Thanks, > Paulo Fragoso > > --00000000000054b1b5065d346365 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
hi!

I'm happy to land it= if no-one has any objections.



=
-adrian


On Tue, 6 Oct = 2026 at 07:28, Paulo Fragoso <paul= o@nlink.com.br> wrote:
Hi,

I would like to ask for reviews of D60083:

=C2=A0 =C2=A0https://reviews.freebsd.org/D60083

Problem

With ipfw nat (or ng_nat) and redirect_addr / redirect_port in front
of a simple web service, every inbound connection to public:443 creates
a link with alias_port =3D 443. All of them land in the same group_in,
and _FindLinkIn() walks that group's grp->full list linearly for eve= ry
packet.

This hit a production hosting datacenter where I work as a
consultant: one network thread was pinned at 100% with only a few
hundred packets per second. We could not find the cause at the time.
First we moved from ipfw to pf, and later the service was moved off
FreeBSD to Debian/Proxmox. The datacenter lost a customer because of
it. I found the root cause only later (two and half years later,
with the application's source code and a lab that reproduces it.

The behaviour is old: the same grouping existed in the pre-2021 hash
table, as far back as libalias 1.0/2.1. Anyone running ipfw nat with
redirects in front of a busy service can hit it.

Change

grp->full becomes an RB tree keyed by (dst_addr, dst_port), with a
per-instance sequence number as a newest-first tie-break. That keeps
the current semantics when several links share the same remote
endpoint (3_natin:2_portoverlap depends on it). Partially specified
links keep the existing list. The new field in struct libalias is
appended at the end, because ipfw_nat.ko and ng_nat.ko read
logDesc/packetAliasMode directly through alias_local.h.

Results (16.0-CURRENT, VNET jails over epair, SYNs to one redirected
port, 1000 pps):

=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0stock (~170k links)=C2=A0 =C2=A0patched (~141k link= s)
=C2=A0 =C2=A0LibAliasIn per packet=C2=A0 =C2=A01 to 2 ms=C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A02 to 4 us
=C2=A0 =C2=A0packets per 10 s=C2=A0 =C2=A0 =C2=A0 =C2=A0 ~7,200 (saturated)= =C2=A0 =C2=A0 ~10,000 (all offered)
=C2=A0 =C2=A0epair_task CPU=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 99%=C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A00.0 to 0.15%

Userland, 100k links in one group: a new SYN goes from about 1.25 ms
to about 600 ns it was really fast.

I also have a backport to 14.0 tested in userland.

adrian@ accepted it and asked for more networking people to look at
it. I am happy to run more tests, for example ng_nat or UDP endpoint
independent mapping, if anyone has a scenario in mind.

Thanks,
Paulo Fragoso

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X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234073 Bruno Damour changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bruno@ruomad.net --- Comment #36 from Bruno Damour --- (In reply to Kevin Bowling from comment #35) I still struggle with this on 15-STABLE (from 2026-09-20) using the ixl in-= tree driver... could not fire both jails with iavf interfaces and a passthrough = for a bhyve-vm (running linux). As a matter of fact using any passthrough in the VM (even with another NIC) triggers Malicious driver events and disables the VFs --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.= From nobody Wed Oct 7 13:39:56 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4j0Dl06Rbzz6vwHq for ; Wed, 07 Oct 2026 13:39:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4j0Dl049Ynz3H1c for ; Wed, 07 Oct 2026 13:39:56 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1791380396; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; 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Wed, 7 Oct 2026 13:39:56 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 697DduBa069125 for net@FreeBSD.org; Wed, 7 Oct 2026 13:39:56 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 299204] re driver's netmap deregistration should unload the dma mappings Date: Wed, 07 Oct 2026 13:39:56 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.5-RELEASE X-Bugzilla-Keywords: patch X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: linimon@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: keywords assigned_to Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D299204 Mark Linimon changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |patch Assignee|bugs@FreeBSD.org |net@FreeBSD.org --- Comment #1 from Mark Linimon --- ^Triage: note that this contains an line change. --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Wed Oct 7 13:40:31 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4j0Dlg1B5Pz6vvyP for ; 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mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4j0Dlf6n9pzw10 for ; Wed, 07 Oct 2026 13:40:30 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 697DeUIm069661 for ; Wed, 7 Oct 2026 13:40:30 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 697DeUJr069660 for net@FreeBSD.org; Wed, 7 Oct 2026 13:40:30 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 299204] re driver's netmap deregistration should unload the dma mappings Date: Wed, 07 Oct 2026 13:40:31 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.5-RELEASE X-Bugzilla-Keywords: patch, vendor X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: linimon@FreeBSD.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: keywords Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D299204 Mark Linimon changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |vendor --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Wed Oct 7 13:51:30 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4j0F0N0d0sz6vwql for ; Wed, 07 Oct 2026 13:51:32 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4j0F0N05g3z3KZ0 for ; 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Wed, 07 Oct 2026 13:51:31 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 697DpVln090131 for ; Wed, 7 Oct 2026 13:51:31 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 697DpVAI090130 for net@FreeBSD.org; Wed, 7 Oct 2026 13:51:31 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 234073] ixl(4): Host X710-DA2 drops connect starting bhyve guest with SR-IOV when not all VFs are in passthrough mode: Malicious Driver Detection event 1 on RX queue X (0x1572) Date: Wed, 07 Oct 2026 13:51:30 +0000 X-Bugzilla-Reason: CC AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.1-STABLE X-Bugzilla-Keywords: IntelNetworking, needs-qa X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: linimon@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: Normal X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback? maintainer-feedback? maintainer-feedback? maintainer-feedback? X-Bugzilla-Changed-Fields: version Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234073 Mark Linimon changed: What |Removed |Added ---------------------------------------------------------------------------- Version|12.0-RELEASE |15.1-STABLE --=20 You are receiving this mail because: You are on the CC list for the bug. You are the assignee for the bug.= From nobody Wed Oct 7 13:53:25 2026 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4j0F2Z15Ngz6vxGg for ; Wed, 07 Oct 2026 13:53:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4j0F2Y5N70z3LFy for ; Wed, 07 Oct 2026 13:53:25 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1791381205; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; 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charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D299203 Mark Linimon changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|bugs@FreeBSD.org |net@FreeBSD.org --=20 You are receiving this mail because: You are the assignee for the bug.= From nobody Wed Oct 7 15:24:47 2026 X-Original-To: freebsd-net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4j0H4D4RvXz6w3xV for ; Wed, 07 Oct 2026 15:25:00 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qv1-f46.google.com (mail-qv1-f46.google.com [209.85.219.46]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "WR4" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4j0H4C6xXjz4MwN for ; 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Wed, 07 Oct 2026 08:24:58 -0700 (PDT) List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 From: Adrian Chadd Date: Wed, 7 Oct 2026 08:24:47 -0700 X-Gm-Features: AclHuK8XALmzwPhb62f-oFePLMHtj051XBooxyor7jvHBgqmNJlnbRLpv6T4MIw Message-ID: Subject: lock order reversals between net80211 and ifnet_sx for rtmsg updates and ipv6 ND To: FreeBSD Net Content-Type: multipart/alternative; boundary="000000000000d2d485065d41b77a" X-Spamd-Bar: / X-Spamd-Result: default: False [-0.90 / 15.00]; ARC_ALLOW(-1.00)[google.com:s=arc-20260327:i=1]; FORGED_SENDER(0.30)[adrian@freebsd.org,adrianchadd@gmail.com]; R_SPF_ALLOW(-0.20)[+ip4:209.85.128.0/17]; DMARC_POLICY_SOFTFAIL(0.10)[freebsd.org : SPF not aligned (relaxed), No valid DKIM,none]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; RWL_MAILSPIKE_POSSIBLE(0.00)[209.85.219.46:from]; RCVD_TLS_LAST(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_ONE(0.00)[1]; ASN(0.00)[asn:15169, ipnet:209.85.128.0/17, country:US]; MISSING_XM_UA(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; TO_DOM_EQ_FROM_DOM(0.00)[]; R_DKIM_NA(0.00)[]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; FROM_NEQ_ENVFROM(0.00)[adrian@freebsd.org,adrianchadd@gmail.com]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TO_DN_ALL(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; ALIAS_RESOLVED(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[209.85.219.46:from] X-Rspamd-Queue-Id: 4j0H4C6xXjz4MwN --000000000000d2d485065d41b77a Content-Type: text/plain; charset="UTF-8" hi! Something happened in the last couple months that's caused more lock order reversals to show up. Notably: Sep 20 18:35:15 ashley kernel: lock order reversal: (sleepable after non-sleepable) Sep 20 18:35:15 ashley kernel: 1st 0xfffffe021ada2020 rtwn0_com_lock (rtwn0_com_lock, sleep mutex) @ /home/adrian/work/freebsd/head/freebsd-src/sys/net80211/ieee80211_ioctl .c:3711 Sep 20 18:35:15 ashley kernel: 2nd 0xffffffff81a41548 ifnet_sx (ifnet_sx, sx) @ /home/adrian/work/freebsd/head/freebsd-src/sys/net/if.c:1485 Sep 20 18:35:15 ashley kernel: lock order rtwn0_com_lock -> ifnet_sx attempted at: Sep 20 18:35:15 ashley kernel: #0 0xffffffff80aeefeb at witness_checkorder+0xd3b Sep 20 18:35:15 ashley kernel: #1 0xffffffff80a7c614 at _sx_slock_int+0x64 Sep 20 18:35:15 ashley kernel: #2 0xffffffff80bc37e5 at if_foreach_group+0x35 Sep 20 18:35:15 ashley kernel: #3 0xffffffff80ccef94 at dump_iface+0xc54 Sep 20 18:35:15 ashley kernel: #4 0xffffffff80ccdba6 at rtnl_handle_ifnet_event+0x96 Sep 20 18:35:15 ashley kernel: #5 0xffffffff838ea3c2 at ieee80211_notify_ifnet_change+0x62 Sep 20 18:35:15 ashley kernel: #6 0xffffffff8390a322 at ieee80211_start_locked+0x72 Sep 20 18:35:15 ashley kernel: #7 0xffffffff838ecc13 at ieee80211_ioctl+0x323 Sep 20 18:35:15 ashley kernel: #8 0xffffffff80bc5fdb at ifhwioctl+0xd6b Sep 20 18:35:15 ashley kernel: #9 0xffffffff80bc74d2 at ifioctl+0x702 Sep 20 18:35:15 ashley kernel: #10 0xffffffff80af63dd at kern_ioctl+0x2bd Sep 20 18:35:15 ashley kernel: #11 0xffffffff80af60bf at sys_ioctl+0x12f Sep 20 18:35:15 ashley kernel: #12 0xffffffff80efb64c at amd64_syscall+0x17c Sep 20 18:35:15 ashley kernel: #13 0xffffffff80ec879b at fast_syscall_common+0xf8 .. which is a call from net80211 -> rt_ifmsg() And then for IPv6 ND: Sep 20 18:35:15 ashley kernel: Invoking IPv6 network device address event may sleep with 1 sleep inhibitors Sep 20 18:35:15 ashley kernel: stack backtrace: Sep 20 18:35:15 ashley kernel: #0 0xffffffff80aef42c at witness_debugger+0x6c Sep 20 18:35:15 ashley kernel: #1 0xffffffff80af0d2c at witness_warn+0x4bc Sep 20 18:35:15 ashley kernel: #2 0xffffffff80c7a2a4 at in6_update_ifa+0xc64 Sep 20 18:35:15 ashley kernel: #3 0xffffffff80ca9ee9 at in6_ifadd+0x309 Sep 20 18:35:15 ashley kernel: #4 0xffffffff80ca5e09 at nd6_ra_input+0x1569 Sep 20 18:35:15 ashley kernel: #5 0xffffffff80c73cf3 at icmp6_input+0x5b3 Sep 20 18:35:15 ashley kernel: #6 0xffffffff80c8f8f1 at ip6_input+0xbc1 Sep 20 18:35:15 ashley kernel: #7 0xffffffff80beee3f at netisr_dispatch_src+0xbf Sep 20 18:35:15 ashley kernel: #8 0xffffffff80bce37a at ether_demux+0x17a Sep 20 18:35:15 ashley kernel: #9 0xffffffff80bcf99a at ether_nh_input+0x3ea Sep 20 18:35:15 ashley kernel: #10 0xffffffff80beee3f at netisr_dispatch_src+0xbf Sep 20 18:35:15 ashley kernel: #11 0xffffffff80bce7e9 at ether_input+0xe9 Sep 20 18:35:15 ashley kernel: #12 0xffffffff838ea60d at ieee80211_vap_deliver_data+0x3d Sep 20 18:35:15 ashley kernel: #13 0xffffffff83923093 at sta_input+0xca3 Sep 20 18:35:15 ashley kernel: #14 0xffffffff838eadf0 at ieee80211_input_mimo+0x1f0 Sep 20 18:35:15 ashley kernel: #15 0xffffffff8398579b at rtwn_bulk_rx_callback+0x2bb Sep 20 18:35:15 ashley kernel: #16 0xffffffff80874a2e at usbd_callback_wrapper+0x89e Sep 20 18:35:15 ashley kernel: #17 0xffffffff80875de9 at usb_command_wrapper+0x99 Now, I'd like to get these fixed in net80211, but it's going to require a bunch of driver and stack work to figure out how to do things without locks held. However! I'd at least like to have the locking protocol for these specific paths documented. Ie: * rt_ifmsg() doesn't have any comments in route.[ch] describing what it does nor what the locking assumptions are. So, are we requiring here that anything calling it will hold no sleep-blocking locks? Or no locks at all? * the ether_input() path - are we also assuming that no sleep blocking locks are held across ether_input() ? There's also no comments in net/ether_subr.[ch] about ether_input()'s behaviour or locking protocol. Thanks! -adrian --000000000000d2d485065d41b77a Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
hi!

Something happened in th= e last couple months that's caused more lock order reversals to show up= .

Notably:

Sep 20 18:35:1= 5 ashley kernel: lock order reversal: (sleepable after non-sleepable)
Se= p 20 18:35:15 ashley kernel: =C2=A01st 0xfffffe021ada2020 rtwn0_com_lock (r= twn0_com_lock, sleep mutex) @ /home/adrian/work/freebsd/head/freebsd-src/sy= s/net80211/ieee80211_ioctl
.c:3711
Sep 20 18:35:15 ashley kernel: =C2= =A02nd 0xffffffff81a41548 ifnet_sx (ifnet_sx, sx) @ /home/adrian/work/freeb= sd/head/freebsd-src/sys/net/if.c:1485
Sep 20 18:35:15 ashley kernel: loc= k order rtwn0_com_lock -> ifnet_sx attempted at:
Sep 20 18:35:15 ashl= ey kernel: #0 0xffffffff80aeefeb at witness_checkorder+0xd3b
Sep 20 18:3= 5:15 ashley kernel: #1 0xffffffff80a7c614 at _sx_slock_int+0x64
Sep 20 1= 8:35:15 ashley kernel: #2 0xffffffff80bc37e5 at if_foreach_group+0x35
Se= p 20 18:35:15 ashley kernel: #3 0xffffffff80ccef94 at dump_iface+0xc54
S= ep 20 18:35:15 ashley kernel: #4 0xffffffff80ccdba6 at rtnl_handle_ifnet_ev= ent+0x96
Sep 20 18:35:15 ashley kernel: #5 0xffffffff838ea3c2 at ieee802= 11_notify_ifnet_change+0x62
Sep 20 18:35:15 ashley kernel: #6 0xffffffff= 8390a322 at ieee80211_start_locked+0x72
Sep 20 18:35:15 ashley kernel: #= 7 0xffffffff838ecc13 at ieee80211_ioctl+0x323
Sep 20 18:35:15 ashley ker= nel: #8 0xffffffff80bc5fdb at ifhwioctl+0xd6b
Sep 20 18:35:15 ashley ker= nel: #9 0xffffffff80bc74d2 at ifioctl+0x702
Sep 20 18:35:15 ashley kerne= l: #10 0xffffffff80af63dd at kern_ioctl+0x2bd
Sep 20 18:35:15 ashley ker= nel: #11 0xffffffff80af60bf at sys_ioctl+0x12f
Sep 20 18:35:15 ashley ke= rnel: #12 0xffffffff80efb64c at amd64_syscall+0x17c
Sep 20 18:35:15 ashl= ey kernel: #13 0xffffffff80ec879b at fast_syscall_common+0xf8

=
.. which is a call from net80211 -> rt_ifmsg()

=
And then for IPv6 ND:

Sep 20 18:35:15 ashley kernel: Invoking I= Pv6 network device address event may sleep with 1 sleep inhibitors
Sep 2= 0 18:35:15 ashley kernel: stack backtrace:
Sep 20 18:35:15 ashley kernel= : #0 0xffffffff80aef42c at witness_debugger+0x6c
Sep 20 18:35:15 ashley = kernel: #1 0xffffffff80af0d2c at witness_warn+0x4bc
Sep 20 18:35:15 ashl= ey kernel: #2 0xffffffff80c7a2a4 at in6_update_ifa+0xc64
Sep 20 18:35:15= ashley kernel: #3 0xffffffff80ca9ee9 at in6_ifadd+0x309
Sep 20 18:35:15= ashley kernel: #4 0xffffffff80ca5e09 at nd6_ra_input+0x1569
Sep 20 18:3= 5:15 ashley kernel: #5 0xffffffff80c73cf3 at icmp6_input+0x5b3
Sep 20 18= :35:15 ashley kernel: #6 0xffffffff80c8f8f1 at ip6_input+0xbc1
Sep 20 18= :35:15 ashley kernel: #7 0xffffffff80beee3f at netisr_dispatch_src+0xbf
= Sep 20 18:35:15 ashley kernel: #8 0xffffffff80bce37a at ether_demux+0x17aSep 20 18:35:15 ashley kernel: #9 0xffffffff80bcf99a at ether_nh_input+0x= 3ea
Sep 20 18:35:15 ashley kernel: #10 0xffffffff80beee3f at netisr_disp= atch_src+0xbf
Sep 20 18:35:15 ashley kernel: #11 0xffffffff80bce7e9 at e= ther_input+0xe9
Sep 20 18:35:15 ashley kernel: #12 0xffffffff838ea60d at= ieee80211_vap_deliver_data+0x3d
Sep 20 18:35:15 ashley kernel: #13 0xff= ffffff83923093 at sta_input+0xca3
Sep 20 18:35:15 ashley kernel: #14 0xf= fffffff838eadf0 at ieee80211_input_mimo+0x1f0
Sep 20 18:35:15 ashley ker= nel: #15 0xffffffff8398579b at rtwn_bulk_rx_callback+0x2bb
Sep 20 18:35:= 15 ashley kernel: #16 0xffffffff80874a2e at usbd_callback_wrapper+0x89e
= Sep 20 18:35:15 ashley kernel: #17 0xffffffff80875de9 at usb_command_wrappe= r+0x99

Now, I'd like to get these fixed in net80211, = but it's going to require a bunch of driver and stack work to figure ou= t how to do things without locks held.

However! I&= #39;d at least like to have the locking protocol for these specific paths d= ocumented.

Ie:

* rt_ifmsg= () doesn't have any comments in route.[ch] describing what it does nor = what the locking assumptions are. So, are we requiring here that anything c= alling it will hold no sleep-blocking locks? Or no locks at all?
=
* the ether_input() path - are we also assuming that no slee= p blocking locks are held across ether_input() ? There's also no commen= ts in net/ether_subr.[ch] about ether_input()'s behaviour or locking pr= otocol.

Thanks!



-adrian
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