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Re: Weird GNUMach crash

From: Alfred M. Szmidt
Subject: Re: Weird GNUMach crash
Date: Mon, 16 Feb 2004 18:06:59 +0100 (MET)

   panic: zalloc: zone kalloc.8192 exhausted
   (There is a small pause here and a bit of disk activity/ flashing IDE LEDs)
   hd1: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
   hd0: disabled DMA
   hd1: disabled DMA
   ide0: reset: success
   (And here my box reboots after some seconds)

Silly question maybe, but, how much RAM and swap do you have?  zalloc
messages tend to pop up when you have to little swap or RAM.

   Does someone have any idea what the problem might be and how I can
   debug this?  I am willing to do so but I am afraid that it can be
   quite hard (and that I do not have the experience and perhaps not
   enough knowledge) so I would appreciate some help (a pointer in the
   right direction).

If you have a serial console then you could check what is happening in
Mach (and maybe crash).  Do you have a serial console?

   Are other people able to reproduce the same?  Please notice that
   you will need to test this using a second partition.

I can't reproduce this.  / is on /dev/hd0s1.

| hurd:/home/ams# ./crash 
| Segmentation fault
| hurd:/home/ams# ./crash
| Segmentation fault
| hurd:/home/ams# ./crash
| Segmentation fault
| hurd:/home/ams# showtrans /home/ams /ams
| /home/ams: /hurd/firmlink /ams
| /ams: /hurd/ext2fs /dev/hd0s4
| hurd:/home/ams# 

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