I've managed to get a bit more information re the kernel 2.6.24.x crashes I have when physical mem is used up.. but first to recap:-
I have an acer 5620 core 2 duo running the x86_64 version of fedora 8 with 2GB Ram and 2GB swap. It works fine with kernel 2.6.23.15-137.fc8, but when I try any of the 2.6.24.xx-xx.fc8 kernels the machine crashes when pyhsical ram fills up. Swap is not used.
* I have checked swap space with badblocks, and all reports fine * Swap is on
...$ cat /proc/swaps Filename Type Size Used Priority /dev/mapper/VolGroup00-LogVol01 partition 2031608 0 -1
...$ cat /proc/sys/vm/swappiness 60
at the point it crashes top (via ssh) looks like this:-
top - 14:13:36 up 29 min, 4 users, load average: 1.32, 0.56, 0.38 Tasks: 162 total, 1 running, 161 sleeping, 0 stopped, 0 zombie Cpu(s): 18.2%us, 6.0%sy, 0.0%ni, 43.0%id, 32.1%wa, 0.0%hi, 0.7%si, 0.0%st Mem: 2061304k total, 2042936k used, 18368k free, 44764k buffers Swap: 2031608k total, 0k used, 2031608k free, 679356k cached
if I run stress from the command line I do get a stack dump I have only been able to capture a bit of that by copying it by hand:-
(*new info) ---- quote ---- CR2 ffffffff00000001
BUG sleeping function called from invalid context at kernel/rwsem.c:21 in_atomic():0, irqs_disabled():1 Pid 3920, comm: stress Tainted: P D 2.6.24.3-50.fc8 #1
Call Trace: [<ffffffff81268b17>] down_read +0x15/0x23 [<ffffffff8105e091>] acct_collect +0x42/0x18e [<ffffffff8103a632>] do_exit + 0x217/0x76b [<ffffffff8126b666>] do_page_fault +0x5c3/0x691 ... ---- end quote ----
Any Ideas what might be happening? Surely it can't just be my machine???
Cheers, Peter.