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Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2

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On 03/10/26 04:34 PM, Salvatore Bonaccorso wrote:
 > > 
> > > v6.18.53: c8050386a2209b2a474c1eb4bd1574dc19129bfb bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc()
> > > v7.2.7: 37e08dc821a57fe0592c917486b638caa888b46d bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc()
> > > v7.3-rc3: b814dfbfeb0a68c9a52073f2caa05a2d5247a329 bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc()
> > > 
> > > -> this one was not backported to 6.11.y, but looks fine as the code
> > > was only introduced in v6.13-rc2 (and backported to v6.12.20).
> > 
> > And now this still got backported to the v6.12.112 released today.
> > 
> > > v6.18.53: 8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27 bnxt_en: Don't free the live ring's TPA state on queue restart failure
> > > v7.2.7: 0596a7caa6fc283e142716739099c038d8714082 bnxt_en: Don't free the live ring's TPA state on queue restart failure
> > > v7.3-rc3: 5ce7f36c334d723954855ac769ede2fe0e8f89c8 bnxt_en: Don't free the live ring's TPA state on queue restart failure
> > > 
> > > Same as above.
> > 
> > And this as well
> > 
> > Aurelien, Bernhard, while I'm working on importing and rebasing
> > 6.12.112 for the next update in trixie, would it be possible you pick
> > those two commits on top to see if they fix the problem? (It might
> > though be possible they do not apply clieanly without more depending
> > fixes which were included in 6.12.112).
> > 
> > If that will not work I can provide you preliminary builds somehwere
> > for 6.12.112 instread.
> 
> Unofficial builds for the unsigned images will appear trough:
> https://debusine.debian.net/debian/developers/work-request/1411088/
> (that is a version without debian/changelog cleanup et al).

Took about an hour, but still crashed :-(

Oct 03 22:43:51 nm3 kernel: Linux version 6.12+unreleased-amd64 (debian-kernel@lists.debian.org) (x86_64-linux-gnu-gcc-14 (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT_DYNAMIC Debian 6.12.112->
Oct 03 22:43:51 nm3 kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-6.12+unreleased-amd64 root=/dev/mapper/sysvg-root ro quiet
[...]
Oct 03 23:47:24 nm3 kernel: DMAR: DRHD: handling fault status reg 2
Oct 03 23:47:24 nm3 kernel: DMAR: [DMA Read NO_PASID] Request device [19:00.0] fault addr 0xde00b000 [fault reason 0x06] PTE Read access is not set
Oct 03 23:47:24 nm3 kernel: bnxt_en 0000:19:00.1 eno2np1: Fatal firmware reset event, data1: 0x201, data2: 0xda27, min wait 1300 ms, max wait 4200 ms
Oct 03 23:47:24 nm3 systemd-networkd[1237]: eno2np1: Lost carrier
Oct 03 23:47:24 nm3 kernel: bond0: (slave eno2np1): link status definitely down, disabling slave
Oct 03 23:47:25 nm3 kernel: bnxt_en 0000:19:00.0 eno1np0: Abandoning msg {0x23 0x2c5b} len: 0 due to firmware status: 0x2000001
Oct 03 23:47:25 nm3 kernel: bnxt_en 0000:19:00.0 eno1np0: Abandoning msg {0xb4 0x2c5c} len: 0 due to firmware status: 0x2000001

I still don't get why my bisection attempt failed so badly,
6.12.111-stable (the one compiled from the kernel.org stable tree
following your bisection instructions) has been running for 36+ hours
before I voluntarily rebooted into your 6.12.112 kernel.

Bernhard

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Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2 Bernhard Schmidt <berni@debian.org> - 2026-10-04 00:10 +0200
  Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2 Ben Hutchings <ben@decadent.org.uk> - 2026-10-04 13:30 +0200
    Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2 Bernhard Schmidt <berni@debian.org> - 2026-10-04 22:50 +0200
      Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2 Salvatore Bonaccorso <carnil@debian.org> - 2026-10-05 07:50 +0200
        Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2 Bernhard Schmidt <berni@debian.org> - 2026-10-05 13:10 +0200
          Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2 Salvatore Bonaccorso <carnil@debian.org> - 2026-10-05 13:20 +0200
            Bug#1149564: linux-image-6.12.111+deb13-amd64: 6.12.111-1 regression crash bnxt_en: DMAR: DRHD: handling fault status reg 2 Salvatore Bonaccorso <carnil@debian.org> - 2026-10-06 09:20 +0200

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