[dm-devel] RE: multipath oops

[christophe.varoqui at free.fr]

You're right, it seems DM multipath-feature related.
Going from queue_if_no_path to fail_if_no_path make it disappear.
Sorry for the noise.

Selon James.Smart at Emulex.Com:

> Nothing in the oops looks recognizable, at least relative to the issues we
> had tracked down via the block/unblock (cable pull) patches.
>
> -- james
>
> > -----Original Message-----
> > From: christophe.varoqui at free.fr [mailto:christophe.varoqui at free.fr]
> > Sent: Friday, December 10, 2004 3:16 AM
> > To: dm-devel at redhat.com
> > Cc: Smart, James
> > Subject: multipath oops
> >
> >
> > pour reference, here is the oops I mentionned earlier, happening when
> > portdisabling on a brocade switch during streaming read on a
> > multipath map :
> >
> > (kernel 2.6.10-rc1-udm2)
> >
> > SCSI error : <2 0 2 3> return code = 0x10000
> > SCSI error : <2 0 2 3> return code = 0x10000
> > SCSI error : <2 0 2 3> return code = 0x10000
> > SCSI error : <2 0 2 2> return code = 0x10000
> > SCSI error : <2 0 2 2> return code = 0x10000
> > SCSI error : <2 0 2 2> return code = 0x10000
> > device-mapper: dm-multipath: error getting device
> > device-mapper: error adding target to table
> > Device sde not ready.
> > end_request: I/O error, dev sde, sector 4493616
> > Device sdb not ready.
> > end_request: I/O error, dev sdb, sector 4493616
> > Unable to handle kernel paging request at ffffff000005e1b7 RIP:
> > [<ffffff000005e1b7>]
> > PML4 3c6063 PGD fbb07067 PMD fbb06067 PTE 80000000cc144163
> > Oops: 0011 [1] SMP
> > CPU 1
> > Modules linked in: dm_round_robin af_packet iscsi_sfnet ipv6
> > smbfs lpfc
> > scsi_transport_fc i2c_amd756 i2c_core hw_random amd74xx evdev
> > ohci_hcd tg3
> > ide_generic ide_cd ide_core cdrom ext3 jbd mbcache sd_mod
> > dm_multipath dm_mod
> > mptscsih scsi_mod mptbase unix
> > Pid: 7, comm: events/1 Not tainted 2.6.10-rc1
> > RIP: 0010:[<ffffff000005e1b7>] [<ffffff000005e1b7>]
> > RSP: 0018:0000010004f8de60  EFLAGS: 00010247
> > RAX: ffffff000005e1af RBX: 00000100f8899a78 RCX: 0000010004f8ded0
> > RDX: ffffff000005e1b1 RSI: 0000000000000212 RDI: 00000100f8899a00
> > RBP: 00000100f8899a80 R08: 0000010004f8c000 R09: 0000000000000003
> > R10: 0000000000000000 R11: 0000000000000000 R12: 0000010004f64880
> > R13: 0000000000000212 R14: 00000100f8899a00 R15: ffffff000005e1b7
> > FS:  0000000040037970(0000) GS:ffffffff803b9500(0000)
> > knlGS:0000000000000000
> > CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> > CR2: ffffff000005e1b7 CR3: 0000000004dfa000 CR4: 00000000000006e0
> > Process events/1 (pid: 7, threadinfo 0000010004f8c000, task
> > 00000100fba32070)
> > Stack: ffffffff80143548 0000010004f648c0 0000010004f64898
> > 0000010004f648a8
> >        ffffffffffffffff 0000000000000001 0000000000000000
> > ffffffff8012f1cc
> >        0000000000010000 0000000000000000
> > Call Trace:<ffffffff80143548>{worker_thread+501}
> > <ffffffff8012f1cc>{default_wake_function+0}
> >        <ffffffff8012f1cc>{default_wake_function+0}
> > <ffffffff80143353>{worker_thread+0}
> >        <ffffffff801472e1>{kthread+218} <ffffffff80110f93>{child_rip+8}
> >        <ffffffff80147207>{kthread+0} <ffffffff80110f8b>{child_rip+0}
> >
> >
> > Code: ff ff 05 00 00 ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00
> > RIP [<ffffff000005e1b7>] RSP <0000010004f8de60>
> > CR2: ffffff000005e1b7
> >  SCSI error : <2 0 2 2> return code = 0x10000
> > SCSI error : <2 0 2 2> return code = 0x10000
> >
> >
> > --
> >
>


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