* Problem with SCSI in 2.6.9
@ 2004-12-16 6:34 Emiliano Garcia
0 siblings, 0 replies; 2+ messages in thread
From: Emiliano Garcia @ 2004-12-16 6:34 UTC (permalink / raw)
To: linux-scsi
Hello,
I have twice now run into a bug where the scsi layer tries to
synchronize the scsi cache on a device that is no longer plugged into
the system. After this, a cat /proc/scsi/scsi hangs my terminal, and the
load average on the machine won't drop below 1.0. It takes roughly a
month for this bug to show up, I back up my system to a firewire drive
every week, and today on the 28th day of uptime I have this in dmesg:
ieee1394: Node changed: 0-01:1023 -> 0-00:1023
ieee1394: Node suspended: ID:BUS[0-00:1023] GUID[0010100500000689]
Synchronizing SCSI cache for disk sda:
Clearly you can see that the scsi layer tries to sync after the fw
device has been unplugged. All this and I even did this before unplugging:
sync;sync;sync;umount /mnt/backup;
This is the second time I have run into this and I belive is related to
post on the LKM:
Aug. 5th 2004:
Re: BUG: SCSI SYNCHRONIZE_CACHE on driver unload
Please refer to this email (google it) because I believe it is very related.
Regards,
Emiliano Garcia
Senior Systems Admin
^ permalink raw reply [flat|nested] 2+ messages in thread
* Problem with SCSI in 2.6.9
@ 2004-12-15 21:57 Emiliano Garcia
0 siblings, 0 replies; 2+ messages in thread
From: Emiliano Garcia @ 2004-12-15 21:57 UTC (permalink / raw)
To: linux-scsi
Hello,
I have twice now run into a bug where the scsi layer tries to
synchronize the scsi cache on a device that is no longer plugged into
the system. After this, a cat /proc/scsi/scsi hangs my terminal, and the
load average on the machine won't drop below 1.0. It takes roughly a
month for this bug to show up, I back up my system to a firewire drive
every week, and today on the 28th day of uptime I have this in dmesg:
ieee1394: Node changed: 0-01:1023 -> 0-00:1023
ieee1394: Node suspended: ID:BUS[0-00:1023] GUID[0010100500000689]
Synchronizing SCSI cache for disk sda:
Clearly you can see that the scsi layer tries to sync after the fw
device has been unplugged. All this and I even did this before unplugging:
sync;sync;sync;umount /mnt/backup;
This is the second time I have run into this and I belive is related to
post on the LKM:
Aug. 5th 2004:
Re: BUG: SCSI SYNCHRONIZE_CACHE on driver unload
Please refer to this email (google it) because I believe it is very related.
Regards,
Emiliano Garcia
Senior Systems Admin
^ permalink raw reply [flat|nested] 2+ messages in thread
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