https://bugzilla.kernel.org/show_bug.cgi?id=156321
Bug ID: 156321
Summary: mpt3sas timeout with xen, works only with
mpt3sas.msix_disable=1 (SAS3008 card)
Product: SCSI Drivers
Version: 2.5
Kernel Version: 4.6.0-1-amd64 (debian-ker...@lists.debian.org)
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
Assignee: scsi_drivers-ot...@kernel-bugs.osdl.org
Reporter: john.wy...@gmx.de
Regression: No
At the moment I've only tested the kernel version cited above. The hardware in
question is a SAS3008 card.
When I start the the machine without loading Xen, the mpt3sas driver works just
fine.
When Xen is loaded, different timeouts occur during I/O.
For simplicity I'm citing the trace from
https://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=migr-5099120 :
[Â Â 618.160182] mpt3sas0: _base_event_notification
[Â Â 648.160097] mpt3sas0: _base_event_notification: timeout
[Â Â 648.160103] mf:
07000000 00000000 00000000 00000000 00000000 0f2f7fff ffffff7c ffffffff
ffffffff 00000000 00000000
[Â Â 648.160117] mpt3sas0: mpt3sas_base_free_resources
[Â Â 648.160122] mpt3sas0: _base_make_ioc_ready
[Â Â 648.160125] mpt3sas0: sending message unit reset !!
[Â Â 648.168091] mpt3sas0: message unit reset: SUCCESS
[Â Â 648.168098] mpt3sas0: mpt3sas_base_unmap_resources
[Â Â 648.169040] mpt3sas0: _base_release_memory_pools
[Â Â 648.170854] mpt3sas0: request_pool(0xffff8800eae00000): free
[Â Â 648.171770] mpt3sas0: sense_pool(0xffff8800f8400000): free
[Â Â 648.173718] mpt3sas0: reply_pool(0xffff8801bba00000): free
[Â Â 648.173786] mpt3sas0: reply_free_pool(0xffff8800eeeb0000): free
[Â Â 648.173789] mpt3sas0: reply_post_free_pool(0xffff8800f9400000): free
[Â Â 648.173792] mpt3sas0: reply_post_free_pool(0xffff8801bb900000): free
[Â Â 648.176634] mpt3sas0: config_page(0xffff8801cc620000): free
[Â Â 649.490617] mpt3sas0: failure at mpt3sas_scsih.c:11439/_scsih_probe()!
I don't know if the trace is exactly the same but I remember the
"base_event_notification: timeout".
As the bug report on ibm.com cited above mentions, booting with
mpt3sas.msix_disable=1 solves the problem for the time being.
https://forums.servethehome.com/index.php?threads/lsi9211-8i-on-ubuntu-15-10-timeouts.8820/page-2
mentions the same problem in connection with Vmware ESXi.
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