Hi Jeff,
I am using your ata-passthru patch
http://www.kernel.org/pub/linux/kernel/people/jgarzik/libata/2.6.12-git4-passthru1.patch.bz2
with hddtemp regularly polling for the temperature state together with
libsata from kernel 2.6.12 on a promise tx2. The disk is set to go to
sleep mode (hdparm -S 35 /dev/sda). And after a couple of hours the
machine oopsed (the disk was sleeping/not mounted at that time - with
high probability) :
ata2: command timeout
ata2: translated ATA stat/err 0xb0/00 to SCSI SK/ASC/ASCQ 0xb/47/00
Assertion failed! qc->flags & ATA_QCFLAG_ACTIVE,drivers/scsi/libata-core.c,ata_qc_complete,line=3052
ata2: translated ATA stat/err 0xb0/00 to SCSI SK/ASC/ASCQ 0xb/47/00
ata2: status=0xb0 { Busy }
Unable to handle kernel NULL pointer dereference at virtual address 00000000
printing eip:
c0118eac
*pde = 00000000
Oops: 0002 [#1]
CPU: 0
EIP: 0060:[<c0118eac>] Tainted: P VLI
EFLAGS: 00010082 (2.6.12)
EIP is at complete+0xc/0x40
eax: 00000000 ebx: 00000082 ecx: 00000000 edx: 00000000
esi: f3b45ab8 edi: 00000292 ebp: f7d11e7c esp: f7d11e64
ds: 007b es: 007b ss: 0068
Process scsi_eh_1 (pid: 320, threadinfo=f7d10000 task=f7c735b0)
Stack: 00000000 f3b45ab8 00000292 c0311544 f7c02c4c f7c71b40 f7c02c4c c03125d4
f3b45ab8 c02d18f2 f3b45ab8 f7c72460 c0350945 f3b45ab8 00000001 00000000
00000016 f7c7252e f5df5dc6 f7c72460 c0350c9e f7c72460 00000001 00000000
Call Trace:
[<c0311544>] blk_end_sync_rq+0x24/0x40
[<c03125d4>] end_that_request_last+0x54/0xa0
[<c02d18f2>] add_disk_randomness+0x32/0x40
[<c0350945>] scsi_end_request+0xb5/0xe0
[<c0350c9e>] scsi_io_completion+0x17e/0x4e0
[<c035d650>] sd_rw_intr+0xc0/0x230
[<c034be6e>] scsi_finish_command+0x8e/0xb0
[<c035b1d5>] ata_scsi_qc_complete+0x45/0x90
[<c0358d6a>] ata_qc_complete+0x3a/0xd0
[<c035c480>] pdc_eng_timeout+0x90/0x120
[<c035ad2a>] ata_scsi_error+0x1a/0x30
[<c034fcea>] scsi_error_handler+0x8a/0xd0
[<c034fc60>] scsi_error_handler+0x0/0xd0
[<c0101311>] kernel_thread_helper+0x5/0x14
Code: eb fe ff ff 53 9d 8b 5d f4 8b 75 f8 8b 7d fc c9 c3 8d b4 26 00 00 00 00 8d bc 27 00 00 00 00 55 89 e5 83 ec 18 89 5d fc 9c 5b fa <ff> 00 83 c0 04 c7 44 24 10 00 00 00 00 c7 44 24 0c 00 00 00 00
I am now trying w/o hddtemp, lets see how long it survives...
Soeren.
--
Sometimes, there's a moment as you're waking, when you become aware of
the real world around you, but you're still dreaming.
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