Package: installation-reports Severity: normal
-- Package-specific info: Boot method: network Image version: squeeze official netboot. Date: 20/Feb/2011 Machine: SunFire V120 Partitions: n/a Base System Installation Checklist: [O] = OK, [E] = Error (please elaborate below), [ ] = didn't try it Initial boot: [O] Detect network card: [ ] Configure network: [ ] Detect CD: [ ] Load installer modules: [ ] Detect hard drives: [ ] Partition hard drives: [ ] Install base system: [ ] Clock/timezone setup: [ ] User/password setup: [ ] Install tasks: [ ] Install boot loader: [ ] Overall install: [E] Comments/Problems: I get the following fatal ooops just before setting up the network in the installer during a netboot install. [ 225.950970] Unable to handle kernel NULL pointer dereference [ 226.025376] tsk->{mm,active_mm}->context = 0000000000000588 [ 226.098688] tsk->{mm,active_mm}->pgd = fffff800ddb9c000 [ 226.167644] Kernel panic - not syncing: Aiee, killing interrupt handler! [ 226.256067] Press Stop-A (L1-A) to return to the boot prom I've actually reproduced it a few times. Unfortunately it is proving difficult to get the full Oops stack trace out of it because klogd is altering the /proc/sys/kernel/printk console log level and is stopping getting the information to the console. I've managed to change the logging level by booting using BOOT_DEBUG=3 and applying the changes below but that seems to change the timing and the problem doesn't occur. If you are able to rebuild the netboot image with /sbin/klogd -c 7 in /lib/debian-installer-startup.d/S10syslog (normally it uses -c 2) then that would mean that I could test it without having to use BOOT_DEBUG=3 Procedure for booting and manually tweaking S10syslog is as follows: boot using boot net BOOT_DEBUG=3 then use "exit" to leave the "just booted" debug shell then in the "before init" debug shell run the following cat > /lib/debian-installer-startup.d/S10syslog <<EOF echo -n "Starting system log daemon: " /sbin/syslogd -m 0 -O /var/log/syslog -S echo -n "syslogd, " /sbin/klogd -c 7 echo "klogd." EOF exit I then reply with "English" as language and "United Kingdom". The crash happens for me shortly after this point but before it starts mentioning network cards. On occasions where the kernel does not panic at this point I can perform a full install successfully. -- Please make sure that the hardware-summary log file, and any other installation logs that you think would be useful are attached to this report. Please compress large files using gzip. Once you have filled out this report, mail it to sub...@bugs.debian.org. -- System Information: Debian Release: 6.0 APT prefers stable APT policy: (990, 'stable'), (1, 'experimental') Architecture: sparc (sparc64) Kernel: Linux 2.6.38-rc6-sparc64 Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20110228223421.3990.90598.report...@shirehall.home.oldelvet.org.uk