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Your message dated Thu, 20 Nov 2025 13:15:58 +0100
with message-id
and subject line Re: Bug#1112627: linux-image-6.16.3+deb14-amd64: Intel audio
no longer works: DMAR: [DMA Write NO_PASID] Request device [00:1b.0] ...
non-zero reserved fields in PTE
has caused the Debian Bug report #1112627,
regarding linux-image-6.16.3+deb14-amd64: Intel audio no longer works: DMAR:
[DMA Write NO_PASID] Request device [00:1b.0] ... non-zero reserved fields in
PTE
to be marked as done.
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If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1112627: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1112627
Debian Bug Tracking System
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From: "Francesco Poli (wintermute)"
To: Debian Bug Tracking System
Subject: linux-image-6.16.3+deb14-amd64: Intel audio no longer works: DMAR:
[DMA Write NO_PASID] Request device [00:1b.0] ... non-zero reserved fields in
PTE
Message-ID: <175664421068.2418.7333005651724934688.reportbug@crunch>
X-Mailer: reportbug 13.2.0
Date: Sun, 31 Aug 2025 14:43:30 +0200
Delivered-To: submit@bugs.debian.org
Package: src:linux
Version: 6.16.3-1
Severity: important
X-Debbugs-Cc: debian-amd64@lists.debian.org, invernomuto@paranoici.org
User: debian-amd64@lists.debian.org
Usertags: amd64
Hello!
I've just upgraded linux-image-amd64 and rebooted to
linux-image-6.16.3+deb14-amd64, to find a very bad surprise:
Intel integrated audio (device 00:1b.0, see the PCI list) no longer works.
Everything looks normal: alsamixer shows the usual controls (nothing relevant
was found to be accidentally muted) for the usual sound card (HDA Intel PCH);
jackd starts as usual; audacious starts as usual and plays music as usual.
But...
But nothing can be heard from the speakers and /var/log/kern.log is
filled with the following error messages (that repeat once every 5 s):
kernel: dmar_fault: 19382 callbacks suppressed
kernel: DMAR: DRHD: handling fault status reg 3
kernel: DMAR: [DMA Write NO_PASID] Request device [00:1b.0] fault addr
0xffa02000 [fault reason 0x0c] non-zero reserved fields in PTE
kernel: DMAR: DRHD: handling fault status reg 3
kernel: DMAR: [DMA Write NO_PASID] Request device [00:1b.0] fault addr
0xffa02000 [fault reason 0x0c] non-zero reserved fields in PTE
kernel: DMAR: DRHD: handling fault status reg 3
kernel: DMAR: [DMA Write NO_PASID] Request device [00:1b.0] fault addr
0xffa02000 [fault reason 0x0c] non-zero reserved fields in PTE
kernel: DMAR: DRHD: handling fault status reg 3
Rebooting with linux-image-6.12.38+deb13-amd64 makes everything work
again.
The error messages look similar to the ones quoted in a comment to
one [upstream bug] report, however that comment refers to Linux kernel
version 6.12.23, while I only see this issue after upgrading from
version 6.12.38 to version 6.16.3 ...
[upstream bug]:
What am I doing wrong?
Please forward my bug report upstream and incorporate a fix as soon as
possible.
Thanks for any help you may provide!
-- Package-specific info:
** Version:
Linux version 6.16.3+deb14-amd64 (debian-kernel@lists.debian.org)
(x86_64-linux-gnu-gcc-14 (Debian 14.3.0-5) 14.3.0, GNU ld (GNU Binutils for
Debian) 2.45) #1 SMP PREEMPT_DYNAMIC Debian 6.16.3-1 (2025-08-24)
** Command line:
BOOT_IMAGE=/boot/vmlinuz-6.16.3+deb14-amd64 root=UUID=a5d36947-d
0d-4818-9184-7cda88ade7fd ro quiet
** Not tainted
** Kernel log:
Unable to read kernel log; any relevant messages should be attached
** Model information
sys_vendor: To Be Filled By O.E.M.
product_name: To Be Filled By O.E.M.
product_version: To Be Filled By O.E.M.
chassis_vendor: To Be Filled By O.E.M.
chassis_version: To Be Filled By O.E.M.
bios_vendor: American Megatrends Inc.
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