Public bug reported:
Binary package hint: linux-source-2.6.24
I have an up-to-date i686 gutsy install on a Dell XPS M1710 laptop
(except that I have the hardy kernel and a few other hardy packages). I
have two SATA drives: one internal and one external (connected via an
eSATA-to-ExpressCard adapter). Today I installed smartmontools to
monitor my drives and started it with the default configuration. Upon it
attempting to inspect my external drive (which was connected but not, I
think, mounted), the kernel ATA driver spat out an exception message and
automatically unloaded the drive (i.e., it disappeared from /dev). Re-
connecting the drive and turning it on and off (which is possible since
it was external) did not get it back (the attempts produced no new
output from dmesg at all). However, after a reboot it was back and
working normally.
I have attached my syslog from when the problem occurred. The output for
it starts at "Problem creating device name scan list".
Also, this may not be relevant, but after re-connecting/restarting the
drive failed to fix things (but before rebooting), I tried to suspend
(twice) for an unrelated reason, but that failed because the ATA driver
couldn't shut down the external drive. This means that the driver was at
least still aware of that drive. The output for that can also be seen in
my syslog.
I'll be the first to admit that this is an obscure bug and probably also
upstream, and to make matters worse I have been unable to reproduce it.
Note that smartd does not work with my drives in the default
configuration (-d sat is required), but what I am reporting is
specifically the fact that the kernel got into a broken state.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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ATA exception upon starting smartd, breaking drive until next reboot
https://bugs.launchpad.net/bugs/197892
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