From: Thomas Voegtle <tv@lio96.de>
To: stable@vger.kernel.org, David Howells <dhowells@redhat.com>,
Steve French <stfrench@microsoft.com>
Subject: 6.6.y: cifs broken since 6.6.23 writing big files with vers=1.0 and 2.0
Date: Tue, 11 Jun 2024 09:20:33 +0200 (CEST) [thread overview]
Message-ID: <e519a2f6-eb49-e7e6-ab2e-beabc6cad090@lio96.de> (raw)
Hello,
a machine booted with Linux 6.6.23 up to 6.6.32:
writing /dev/zero with dd on a mounted cifs share with vers=1.0 or
vers=2.0 slows down drastically in my setup after writing approx. 46GB of
data.
The whole machine gets unresponsive as it was under very high IO load. It
pings but opening a new ssh session needs too much time. I can stop the dd
(ctrl-c) and after a few minutes the machine is fine again.
cifs with vers=3.1.1 seems to be fine with 6.6.32.
Linux 6.10-rc3 is fine with vers=1.0 and vers=2.0.
Bisected down to:
cifs-fix-writeback-data-corruption.patch
which is:
Upstream commit f3dc1bdb6b0b0693562c7c54a6c28bafa608ba3c
and
linux-stable commit e45deec35bf7f1f4f992a707b2d04a8c162f2240
Reverting this patch on 6.6.32 fixes the problem for me.
Thomas
next reply other threads:[~2024-06-11 7:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-11 7:20 Thomas Voegtle [this message]
2024-06-12 12:50 ` 6.6.y: cifs broken since 6.6.23 writing big files with vers=1.0 and 2.0 Greg KH
2024-06-12 14:44 ` Thomas Voegtle
2024-06-12 14:53 ` Greg KH
2024-06-12 17:38 ` [EXTERNAL] " Steven French
2024-06-12 19:21 ` Thomas Voegtle
2024-06-13 18:38 ` Steven French
2024-06-13 19:21 ` Thomas Voegtle
2024-06-13 20:07 ` Steven French
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