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SubjectRe: 2.5.67: ppa driver & preempt == oops
Gert Vervoort <gert.vervoort@hccnet.nl> wrote:
>
> Andrew Morton wrote:
>
> >This patch should make the warnings go away.
> >
> >
> The warnings are still there:
>
> ppa: Version 2.07 (for Linux 2.4.x)
> ppa: Found device at ID 6, Attempting to use EPP 16 bit
> ppa: Communication established with ID 6 using EPP 16 bit
> scsi0 : Iomega VPI0 (ppa) interface
> bad: scheduling while atomic!
> Call Trace:
> [<c0117064>] schedule+0x3a4/0x3b0
> [<c0117349>] wait_for_completion+0x99/0xe0

OK, that seems to be a different bug. The patch actually fixes
a null pointer deref.

> error in initcall at 0xc0391ad0: returned with preemption imbalance

ick.

> When trying to mount a zip disk, the mount process gets stuck:
>
> [root@viper root]# mount -t ext2 /dev/sda1 /mnt/zip
> SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
> sda: Write Protect is off
> sda: cache data unavailable
> sda: assuming drive cache: write through
> SCSI device sda: 196608 512-byte hdwr sectors (101 MB)
> sda: Write Protect is off
> sda: cache data unavailable
> sda: assuming drive cache: write through
>
> At this point the mount process is unkillable.
> Also strange is that the messages are printed twice.

The number of broken drivers in 2.5 continues to be depressing.

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