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-kernel@xxxxxxxxxxxxxxxx) Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Other Assignee: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx Reporter: john.wyzer@xxxxxx 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. -- You are receiving this mail because: You are watching the assignee of the bug.-- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
