[dm-devel] RE: multipath oops

[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
> 
> 
> --
>