Messages in this thread | | | Subject | Bug in the sg driver | Date | Mon, 06 Oct 2003 21:06:36 +0300 | From | Dag Nygren <> |
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Hi,
just got back from a customer with major problems with a LTO-drive and an Adaptec 19160.
The problems was ones that HP claimed a firmware upgrade would fix and even gave a tool for doing this: hp_ltt.
Running this the first time would always segfault and trying a second time would consistently panic the system.
We traced the segfault to sg_ioctl trying to do something. After finding a vague hint with google I tried to boot with mem=512M (The machine has 2GB of memory) and voila: The update worked without any crashes. We don't know yet if the firmware update fixed the original problem, but the conclusion is:
sg_ioctl seems to address illegal parts of memory when used with kernels where highmem is enabled.
Any sg-driver maintainers out there?
Best Regards
-- Dag Nygren email: dag@newtech.fi Oy Espoon NewTech Ab phone: +358 9 8024910 Träsktorpet 3 fax: +358 9 8024916 02360 ESBO Mobile: +358 400 426312 FINLAND
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