Messages in this thread |  | | From | (Andreas Kies) | Subject | Hard lockup with 2.4.19 and ide-scsi | Date | Tue, 16 Oct 2001 00:50:26 +0000 |
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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 }
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