QLA2xxx: Kernel deadlock on high load somewhere after 2.6.20
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https://bugzilla.kernel.org/show_bug.cgi?id=11646
--- Comment #35 from Ninad <[email protected]> 2010-08-31 06:21:54 --- Dear Bernd Zeimetz,
Has there been a resolution yet on this issue?
When you said "pci=nomsi seems to work" - has the problem got resolved for you using pci-nomsi?
I am using Oracle VM 2.2.1 and although we do not see the Mailbox command timeout message, infact we have not got many messages at all in the /var/log/messages - but we have observed IO getting stalled to few or most of our LUNs configured as ocfs2 filesystems.
The port do not show as down (from the SAN logs we have checked) and the LUNs getting stalled for a server - there is no problem from other servers to write to that LUNs (as they are shared to other servers being ocfs2).
But for some reason - I am getting a feeling that our problem could well be the reason of what you are facing, hence request some feedback from you.
Thanks,
Ninad
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--- Comment #36 from Bernd Zeimetz <[email protected]> 2010-08-31 10:45:16 ---
Quoted 3 lines · On 08/31/2010 08:22 AM, [email protected] wrote:
Has there been a resolution yet on this issue?
When you said "pci=nomsi seems to work" - has the problem got resolved for you using pci-nomsi?
pci=nomsi makes the machine work fine, indeed.
See Debian bug #572322 for details - the Debian Kernel ships a patch to allow to
disable msi(-x) for the Qlogic cards now.
Cheers,
Bernd
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Alan <[email protected]> changed:
What |Removed |Added
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CC| |[email protected] Kernel Version|2.6.26.5 |2.6.32
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Alan <[email protected]> changed:
What |Removed |Added
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Status|NEW |RESOLVED
Resolution| |OBSOLETE--- Comment #37 from Alan <[email protected]> 2012-10-30 15:12:24 --- If this is still seen on modern kernels then please re-open/update
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Ravshan DM <[email protected]> changed:
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CC| |[email protected]
--- Comment #38 from Ravshan DM <[email protected]> ---
I had this issue reproduced on my environment: 2.6.36.4 #848 SMP Thu Jul 17 19:55:17 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
It took time to figure out the root cause, which turned to be a bad SFP, once I replaced it, all on HBA qla2462, the FC switch recognized the FC port(s) immediately and all LUNs re-appeared on the host. I hope this info helps.
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--- Comment #39 from Alan <[email protected]> --- Thanks
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