Bug#934331: marked as done (linux: backport "dm: disable DISCARD if the underlying storage no longer supports it"?)
Your message dated Wed, 28 Aug 2019 13:17:08 +0000
with message-id <E1i2xoy-00043C-CI@fasolo.debian.org>
and subject line Bug#934331: fixed in linux 4.19.67-2
has caused the Debian Bug report #934331,
regarding linux: backport "dm: disable DISCARD if the underlying storage no longer supports it"?
to be marked as done.
This means that you claim that the problem has been dealt with.
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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934331: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=934331
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--- Begin Message ---
Package: linux
Version: 4.9.168-1+deb9u4
Severity: normal
Hi!
Today I ran into an issue that matches the description of upstream
commit bcb44433bba5eaff293888ef22ffa07f1f0347d6:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bcb44433bba5eaff293888ef22ffa07f1f0347d6
> dm: disable DISCARD if the underlying storage no longer supports it
>
> Storage devices which report supporting discard commands like
> WRITE_SAME_16 with unmap, but reject discard commands sent to the
> storage device. This is a clear storage firmware bug but it doesn't
> change the fact that should a program cause discards to be sent to a
> multipath device layered on this buggy storage, all paths can end up
> failed at the same time from the discards, causing possible I/O loss.
>
> The first discard to a path will fail with Illegal Request, Invalid
> field in cdb, e.g.:
> kernel: sd 8:0:8:19: [sdfn] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
> kernel: sd 8:0:8:19: [sdfn] tag#0 Sense Key : Illegal Request [current]
> kernel: sd 8:0:8:19: [sdfn] tag#0 Add. Sense: Invalid field in cdb
> kernel: sd 8:0:8:19: [sdfn] tag#0 CDB: Write same(16) 93 08 00 00 00 00 00 a0 08 00 00 00 80 00 00 00
> kernel: blk_update_request: critical target error, dev sdfn, sector 10487808
The patch was CC'ed to stable but doesn't seem to appear in 4.19.y.
Unfortunately this appears to be a transient bug in the storage
firmware, so I don't know how to reproduce it -- deleting and rescanning
the sdX device has cleared the repeated error condition for now.
However I'd really like to avoid corrupting the involved file systems,
so if bcb44433bba5eaff293888ef22ffa07f1f0347d6 could make it into either
the 4.9 branch or the 4.19 branch, that'd be lovely.
I've also asked the storage vendor what they think about this, but I'm
not going to hold my breath.
Many thanks in advance,
Chris
--- End Message ---
--- Begin Message ---
Source: linux
Source-Version: 4.19.67-2
We believe that the bug you reported is fixed in the latest version of
linux, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 934331@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Salvatore Bonaccorso <carnil@debian.org> (supplier of updated linux package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Wed, 28 Aug 2019 06:20:22 +0200
Source: linux
Architecture: source
Version: 4.19.67-2
Distribution: buster
Urgency: medium
Maintainer: Debian Kernel Team <debian-kernel@lists.debian.org>
Changed-By: Salvatore Bonaccorso <carnil@debian.org>
Closes: 866122 934331
Changes:
linux (4.19.67-2) buster; urgency=medium
.
[ Salvatore Bonaccorso ]
* dm: disable DISCARD if the underlying storage no longer supports it
(Closes: #934331)
* xfs: fix missing ILOCK unlock when xfs_setattr_nonsize fails due to EDQUOT
(CVE-2019-15538)
.
[ Ben Hutchings ]
* KVM: Ignore ABI changes
* [ppc64el] Disable PPC_TRANSACTIONAL_MEM (Closes: #866122)
* [ppc64el] Avoid ABI change for disabling TM
* netfilter: conntrack: Use consistent ct id hash calculation
(fixes regression in 4.19.44)
.
[ Cyril Brulebois ]
* [arm] Backport DTB support for Rasperry Pi Compute Module 3.
* [arm64] Backport DTB support for Rasperry Pi Compute Module 3.
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