|Summary:||ide-tape driver needs patch to be SMP-stable|
|Product:||[Retired] Red Hat Linux||Reporter:||Tony Kocurko <akocurko>|
|Component:||kernel||Assignee:||Cristian Gafton <gafton>|
|Status:||CLOSED NEXTRELEASE||QA Contact:|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||1999-08-31 16:48:33 UTC||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Cloudforms Team:||---||Target Upstream Version:|
Description Tony Kocurko 1999-06-21 16:28:36 UTC
Without fail, writing any kind of level 0 dump to /dev/nht0 hangs the system after a while under RedHat 6.0. This includes tar and dump directly to /dev/nht0 or piped through to dd. I suspect ide-tape.c. We're running RedHat Linux with the 2.2.5-22smp SMP kernel writing to a Seagate STT28000A-RF ATAPI Travan-4 tape drive. Backups worked under RedHat 5.2, since I made them in preparation for full, fresh installs of RedHat 6.0. I have seen many, many reports of this problem with IDE tape drives. Gadi Oxman, the author of ide-tape.c, suggested in reply to one such problem a patch to take ide-tape.c from version 1.14 to 1.15, but the patch fails on several hunks.
Comment 1 Tony Kocurko 1999-06-24 12:54:59 UTC
Gadi Oxman, the maintainer of /usr/src/linux/drivers/block/ide-tape.c, sent a patch to upgrade it from version 1.14 to 1.15. That patch installed flawlessly on RedHat's kernel version 2.2.5-22. I was then able to do a tar backup of all our file systems, which include a pair of 1.37 gigabyte seismic data files. According to Gadi, his patch resolves some problem between ide-tape.c and the SMP, which we are using in our kernel.
Comment 2 Bill Nottingham 1999-06-24 17:03:59 UTC
Can you post the patch?
Comment 3 Michael K. Johnson 1999-07-13 17:22:59 UTC
We should ask Gadi for the patch if the next kernel we release does not have the new ide-tape driver in it, or get it ourselves if it is otherwise available. Newer 2.2.x kernels might include the newer driver; I have not checked yet. We should certainly use a new ide-tape driver anyway because of the bug that slab poisoning found; I don't know if this is that same bug or another bug.
Comment 4 Bill Nottingham 1999-08-31 16:48:59 UTC
fixed in the latest kernels in Raw Hide.