mptsas cannot dectect hotplugged harddisks occasionally
https://bugzilla.kernel.org/show_bug.cgi?id=15721
Andrew Morton <[email protected]> changed:
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CC| |[email protected] Component|Other |SCSI AssignedTo|[email protected] |[email protected] |rg |
--- Comment #4 from Andrew Morton <[email protected]> 2010-04-09 20:54:38 --- Recategorised to scsi, assigned to Eric.
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https://bugzilla.kernel.org/show_bug.cgi?id=15721
--- Comment #5 from [email protected] 2010-04-11 00:50:53 --- (From update of attachment 25912)
this doesn't proceed to test_unit_ready as the correct hotplug sequence but directly to the mptsas_free_fw_event.
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https://bugzilla.kernel.org/show_bug.cgi?id=15721
--- Comment #6 from [email protected] 2010-04-13 09:15:51 --- Created an attachment (id=25987)
--> (https://bugzilla.kernel.org/attachment.cgi?id=25987)
fix sata hotplug problem from lsi
This patch is from lsi. It seems that it makes situation much better. If we plug only one disk, it is always found now. (50 times testing passed successfully). However, if we plug several disks together, there are still one to three disks missing.
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https://bugzilla.kernel.org/show_bug.cgi?id=15721
--- Comment #7 from Andrew Morton <[email protected]> 2010-04-13 19:18:03 --- Please don't send patches via bugzilla - it causes lots of problems with our usual patch management and review processes.
Please send this patch via email as per Documentation/SubmittingPatches. Suitable recipients may be found via scripts/get_maintainer.pl. Please also cc myself on the email.
Thanks.
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kdesai <[email protected]> changed:
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--- Comment #8 from kdesai <[email protected]> 2010-04-23 08:33:58 --- (In reply to comment #6)
Quoted 1 line
Created an attachment (id=25987)
--> (https://bugzilla.kernel.org/attachment.cgi?id=25987) [details]
Quoted 6 lines
fix sata hotplug problem from lsi
This patch is from lsi. It seems that it makes situation much better. If we plug only one disk, it is always found now. (50 times testing passed successfully). However, if we plug several disks together, there are still one to three disks missing.
LSI has plan to post this patch soon. we are doing more testing on this patch. We are not seeing this issue(multiple SATA drivers hotplug) in our LAB. If you can provide me logs with and without debug level = 0x100000 I can provide my analysis.
"echo 0x100000 > /sys/modules/mptbase/parameters/mpt_debug_level"
Thanks, Kashyap
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Alan <[email protected]> changed:
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Status|NEW |RESOLVED
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Resolution| |INSUFFICIENT_DATASignature · 3 lines
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