Messages in this thread | | | Date | Thu, 9 Jan 2003 10:53:29 -0800 | From | Patrick Mansfield <> | Subject | Re: USB-storage/SCSI panic/error writing CF card |
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On Thu, Jan 09, 2003 at 01:36:14PM -0500, Murray J. Root wrote:
> Writing to the card sometimes hangs the process when unmounting > > Sometimes the data IS written to the card first, then it hangs the process. > > Sometimes the card is corrupt (cannot cd to the mountpoint -I/O error) > /var/log/messages has several lines like: > Jan 9 13:08:51 Master kernel: FAT: Filesystem panic (dev sd(8,1)) > Jan 9 13:08:51 Master kernel: Directory 4: invalid cluster chain > > Sometimes get kernel panic with ONLY these 2 lines: > "Error handler thread not present at f7a57000 f7bf0d80 drivers/scsi/scsi-error.c 154" > "In interrupt handler - not syncing" > No messages in logs
The panic is caused by timeout on a scsi command when the error handler has unexpectedly gone away, possibly because of this bug, where the erorr handler exits early because of a SIGHUP:
http://marc.theaimsgroup.com/?l=linux-scsi&m=104145526331820&w=2
Fixing the panic won't fix the corruption. scsi should really offline the adapter and scsi devices on the adapter rather than panic.
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