>In my quest to get better debug data from users in Fedora bug reports,
>I came up with this patch. A majority of users don't have serial
>consoles, so when an oops scrolls off the top of the screen,
>and locks up, they usually end up reporting a 2nd (or later) oops
>that isn't particularly helpful (or worse, some inconsequential
>info like 'sleeping whilst atomic' warnings)
Here's something interesting too:
Sometimes, an oops is even longer than 25 rows, and the usual user
does not have
- VGA mode with a lot of lines (because it's hard to read)
- FB mode with a lot of lines (slow, and it's also hard to read)
Is it be possible to change the VGA mode to 80x43/80x50/80x60
during protected mode?
>With this patch, if we oops, there's a pause for a two minutes..
>which hopefully gives people enough time to grab a digital camera
>to take a screenshot of the oops.
>
It would be ideal to have something like BSD's "dump to predefined
block device on oops", so extraction of oops logs requires neither
pen-and-paper nor a digital camera. Requires another partition that
can be used for it, though.
>The one case this doesn't catch is the problem of oopses whilst
>in X. Previously a non-fatal oops would stall X momentarily,
>and then things continue. Now those cases will lock up completely
>for two minutes. Future patches could add some additional feedback
>during this 'stall' such as the blinky keyboard leds, or periodic speaker beeps.
>
Oh yes, include Stas Sergeev's PCSP patch and play a WAV telling "your box
just crashed, wait two minutes for uh ... an oops you can't grab
either"(*).
(*) If the oops is longer than 25 lines, ... you can't even use scrollback
because scrollback is cleared when you change consoles. X runs by default
on tty7, and the kernel dumps it somewhere else. (And even if it dumped to
tty7 directly, you would not see it.)
Jan Engelhardt
--
| Alphagate Systems, http://alphagate.hopto.org/
| jengelh's site, http://jengelh.hopto.org/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
