help diagnosing crash + other oddities

[Steve]

Hi All,

I have had some recent crashes and am trying to diagnose what might be 
causing the problems. I'd really appreciate any suggestions or ideas on 
where to look for info.

crash: full on kernel panic. This seems to have been cause by me 
stopping and restarting sendmail. I use a shell alias which stops, 
waits and restarts sendmail. See [item 1] at the end of this message

httpd signal 11: I seem to be getting a bunch of these recently. I used 
to see these with earlier versions of PHP. Has anyone had these with 
4.3.10 (side note: 4.3.10 does not seem to report error line numbers 
correctly).

runaway process: When I checked in this morning mysql was at 80% wcpu 
and my 1 gig of swap was all used up. my guess from the logs is that an 
httpd process went down leaving mysql with nowhere to go   [see item 2] 
at the end of this message

question: what does <process-name> mean in top? Shows as IWs or IWs+ in 
ps
eg: 58939 root             10   0   648K     0K wait     0:00  0.00%  
0.00% <sh>



Thanks for your time,

Steve




INFO

Services:
ssh, httpd, ftp(inetd), named, sendmail
+ spamassassin as spamc/d (resource hog)
+ my own php script for smpt auth


[item 1]

Mar 13 16:40:50 la /kernel: Fatal trap 12: page fault while in kernel 
mode
Mar 13 16:40:50 la /kernel: fault virtual address       = 0xab4c8000
Mar 13 16:40:50 la /kernel: fault code          = supervisor read, page 
not pres
ent
Mar 13 16:40:50 la /kernel: instruction pointer = 0x8:0xc01e403b
Mar 13 16:40:50 la /kernel: stack pointer               = 
0x10:0xcc658e60
Mar 13 16:40:50 la /kernel: frame pointer               = 
0x10:0xcc658e84
Mar 13 16:40:50 la /kernel: code segment                = base 0x0, 
limit 0xffff
f, type 0x1b
Mar 13 16:40:50 la /kernel: = DPL 0, pres 1, def32 1, gran 1
Mar 13 16:40:50 la /kernel: processor eflags    = interrupt enabled, 
resume, IOP
L = 0
Mar 13 16:40:50 la /kernel: current process             = 13357 (top)
Mar 13 16:40:50 la /kernel: interrupt mask              = net tty bio 
cam
Mar 13 16:40:50 la /kernel: trap number         = 12
Mar 13 16:40:50 la /kernel: panic: page fault
Mar 13 16:40:50 la /kernel:
Mar 13 16:40:50 la /kernel: syncing disks... 13 2 2 2 2 2 2 2 11
Mar 13 16:40:50 la /kernel: done
Mar 13 16:40:50 la /kernel: Uptime: 6d14h48m52s
Mar 13 16:40:50 la /kernel: Automatic reboot in 60 seconds - press a 
key on the
console to abort
Mar 13 16:40:50 la /kernel: Rebooting...



[item 2]

Mar 15 08:26:42 la /kernel: pid 44764 (httpd), uid 65534: exited on 
signal 11
Mar 15 08:28:49 la /kernel: pid 51529 (httpd), uid 65534: exited on 
signal 11
Mar 15 08:31:57 la /kernel: swap_pager_getswapspace: failed
Mar 15 08:31:57 la last message repeated 85 times
Mar 15 08:31:57 la /kernel: pid 44762 (httpd), uid 65534, was killed: 
out of swa
p space
Mar 15 08:32:28 la /kernel: swap_pager_getswapspace: failed
Mar 15 08:32:35 la last message repeated 335 times
Mar 15 08:32:35 la /kernel: pid 44769 (httpd), uid 65534, was killed: 
out of swa
p space
Mar 15 08:33:08 la /kernel: swap_pager_getswapspace: failed
--- and so on until I restarted services