Re: [PATCH] Re: 2.5.67: ppa driver & preempt == oops

From: Randy.Dunlap (rddunlap@osdl.org)
Date: Tue Apr 15 2003 - 19:07:48 EST


On Tue, 15 Apr 2003 16:51:53 -0700 walt <wa1ter@myrealbox.com> wrote:

| walt wrote:
| > Patrick Mansfield wrote:
| >
| >> On Sun, Apr 13, 2003 at 07:44:04PM +0200, Gert Vervoort wrote:
| >>
| >> Here is a patch against 2.5.67, can you try it out?
| >>
| >> I did not compile let alone run with this patch.
| >>
| >> We never hold the host_lock while calling the detect function (unlike the
| >> io_request_lock, see the bizzare 2.4 code), so acquiring it inside
| >> ppa_detect is very wrong. I don't know why your scsi scan did not hang.
| >>
...
| >
| >
| >
| > Yes! Thank you. This patch fixes the segfault of modprobe that I've
| > been seeing for ages.
|
| Hmm. An important addendum --
|
| I can mount and unmount the Zip disk as many times as I want, as long as
| I don't eject the disk from the drive.
|
| Once I eject the disk and insert it again, the mount commant just hangs
| forever. No error messages anywhere -- it just hangs. I can't even
| kill the mount command. The only way out is to reboot and then all is
| well again until the next time I eject the disk from the drive.

I don't know that it's _required_, but you can try doing
  umount /mnt/zip (or /dev/sdx)
  eject /mnt/zip (or dev/sdx)

and then eject it, reinsert it, try to mount, etc.?

--
~Randy
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