Reading a CD with somewhat "slight" defects causes my machine to lock up
solidly ( No keyboard, no more disk activity ) . The bug is totally
reproducible if you manage to cause a timeout during reading.
CDs with hard surface defects do not cause a timeout and therefore do not
provoke the bug.
Used kernel :
2.4.9 ( no extra patches, no unofficial modules )
ide-scsi module is used instead of ide-cd.
No automount, no user space programs like autorun that access the cd drive.
Used Hardware :
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: Memorex Model: SixteenMAXX 1040 Rev: TWS1
Type: CD-ROM ANSI SCSI revision: 02
The syslog only shows some IDE errors, which are not unusual in this
situation.
Using ide-cd instead of ide-scsi works fine, no more lockups, the read
operation even completes successful after some time.
Using kernel 2.2.19 also works fine.
Any important information missing ?
Thanks
Andreas.
Crash 1 :
Sep 24 23:02:04 au kernel: scsi : aborting command due to timeout : pid 0,
scsi1, channel 0, id 0, lun 0 Read (10) 00 00 03 d2 83 00 00 3f 00
Sep 24 23:02:04 au kernel: hdc: timeout waiting for DMA
Sep 24 23:02:04 au kernel: ide_dmaproc: chipset supported ide_dma_timeout
func only: 14
Sep 24 23:02:04 au kernel: hdc: status timeout: status=0xd0 { Busy }
Sep 24 23:02:04 au kernel: hdc: drive not ready for command
Sep 24 23:02:04 au kernel: scsi : aborting command due to timeout : pid 0,
scsi1, channel 0, id 0, lun 0 Read (10) 00 00 03 d2 c2 00 00 01 00
Sep 24 23:02:04 au kernel: hdc: ATAPI reset complete
# crash occurs here
------
Crash 2 :
Oct 12 22:08:21 au kernel: scsi : aborting command due to timeout : pid 0,
scsi0, channel 0, id 0, lun 0 Read (10) 00 00 04 83 82 00 00 08 00
Oct 12 22:08:21 au kernel: hdc: timeout waiting for DMA
Oct 12 22:08:21 au kernel: ide_dmaproc: chipset supported ide_dma_timeout
func only: 14
Oct 12 22:08:21 au kernel: hdc: status timeout: status=0xd0 { Busy }
Oct 12 22:08:21 au kernel: hdc: drive not ready for command
Oct 12 22:08:21 au kernel: hdc: ATAPI reset complete
Oct 12 22:08:21 au kernel: hdc: irq timeout: status=0x80 { Busy }
# crash occurs here
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This archive was generated by hypermail 2b29 : Mon Oct 15 2001 - 21:00:59 EST