On Sun, Aug 26, 2007 at 10:04:31AM -0700, Randy Dunlap wrote: > On Sun, 26 Aug 2007 09:23:05 -0400 Neil Horman wrote: > > > On Fri, Aug 24, 2007 at 05:01:39PM -0700, Randy Dunlap wrote: > > > On Fri, 24 Aug 2007 14:41:47 -0700 Randy Dunlap wrote: > > > > > > > Hi, > > > > > > > > I'm trying to use the recent vmcoreinfo patch... > > > > > > > c. My 2.6.23-rc3 dump-capture kernel currently faults a few times, > > > > then it panics. I'll add a serial console and capture its output > > > > to see what is going on. > > > > > > I booted 3 times with no problems (without serial console on the > > > dump-capture kernel), then I added a serial console to that kernel > > > and got lots of problems. They all seem to be OOM problems, then > > > the kernel gives up and falls over. (log attached) > > > > > haven't looked at your log yet, but how much memory are you passing in your > > crashkernel parameter in your first kernel boot? Nominally 64MB is the minimum > > recommended for most kernel configurations > > Hi Neil, > > crashkernel=64M at 16M > Hmm, well that should be enough. looking at your log, it appears as though you have a 512k chunk allocatable, which should seem sufficient to go on a little longer. The fact that your not seems to indicate that you are allocating a suspiciously large single chunk of ram. I'd configure your initramfs to drop to a shell prompt before it sets up lp0. Then you can step through the actions of the init script and monitor the contents of /proc/slabinfo to get an idea of whats eating up all your lowmem prior to the oom kill. Neil > > > Regards > > Neil > > > > > > > > d. Documentation/kdump/kdump.txt mentions an option to produce > > > ELF32 headers instead of 64-bit headers: --elf32-core-headers. > > > Where is this option used? I.e., what program recognizes it? > > > kdump.txt isn't telling me this info and I can't read it between > > > the lines. > > > --- > ~Randy > *** Remember to use Documentation/SubmitChecklist when testing your code *** -- /*************************************************** *Neil Horman *Software Engineer *Red Hat, Inc. *nhorman at redhat.com *gpg keyid: 1024D / 0x92A74FA1 *http://pgp.mit.edu ***************************************************/
