Re: x86-64 sporadic hang in 2.6.23rc7 and 2.6.22
From: Helge Hafting
Date: Sat Sep 29 2007 - 10:10:23 EST
Thomas Gleixner wrote:
On Mon, 2007-09-24 at 23:08 +0200, Helge Hafting wrote:I didn't need the serial - it crashes during console work too.
The two kernels mentioned hangs occationally.
Typically when I compile something and pass the time
by surfing the web.
A few minutes and then I notice that the mouse (and everything else in X)
stops. kbd LEDs does not react to numlock/capslock.
The only thing that still works is sysrq+B
So far this has happened while running X, so no messages.
I have gone back to 2.6.22rc4, which seems to work.
This is a single opteron, although on a dual-slot board.
Can you switch to serial console, so we can get some information out of
that box? Sysrq-B is working, so we can get info from other sysrq
functions as well.
I think a "make clean" was in progress at the time. There must be work
in order to crash.
This time 2.6.22rc4 died on me with a general protection fault
I got two reports, the first one scrolled partially off screen but
the whole trace was there:
Then I got:
spinlock lockup on cpu #0, kswapd 0/212
[From here on, it continues exactly like the first report:]
sysrq P says:
pid 212 comm: kswapd0 not tainted 2.6.22-rc4 #18
I took a picture of the screen, in case the register dumps are interesting.
Wonder what this is - dcache trouble? swap trouble?
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