On Dec 10, 2009, at 7:47 PM, Richard Scobie <richard@xxxxxxxxxxx> wrote:
Matthew Tehonica wrote:
After about 5 minutes, I try to cat /proc/mdstat again and it just
freezes and sits there with the cursor flashing. At this point, I
can do anything with mdadm, not even like a --detail on another
array on the system. Just sits there and flashes. I've tried with
a bunch of different disks and same thing all the time. Here is a
section from my kern.log. Dec 10 19:01:07 ghostrider kernel: [ 1338.011320
] /build/buildd/linux-2.6.31/drivers/scsi/mvsas/mv_sas.c
1669:mvs_abort_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011330] /build/buildd/
linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011343] /build/buildd/
linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011349] /build/buildd/
linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011443] /build/buildd/
linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1669:mvs_abort_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011449] /build/buildd/
linux-2.6.31/drivers/scsi/mvsas/mv_sas.c 1608:mvs_query_task:rc= 5
Dec 10 19:01:07 ghostrider kernel: [ 1338.011461] end_request: I/O
error, dev sdf, sector 0
Dec 10 19:01:07 ghostrider kernel: [ 1338.011472] md: super_written
gets error=-5, uptodate=0
Looks like the drives are being dropped by the controller.
I believe there was some recent discussion here about mv_sas, md and
failures under heavy I/O load.
Regards,
Richard
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Thanks Richard! After some more review I found many people with this
problem and appears the linux-scsi devs submitted patches mid last
month. Building the latest kernel as we speak!
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