Package: linux-image-2.6.32-2-sparc64-smp Version: 2.6.32-8 Severity: serious
On my sid sparc box I can reproducibly cause a shell getting in a state where the kernel soft-locks and one cpu is only occupied py this process. kill -KILL does not work, sync does not work, restarting the computer needs reboot -n -f and so on. I think this is due to some misalignment of signal stacks, as described in http://marc.info/?l=linux-sparc&m=126576299426902&w=2 (at least the hanging cpu hangs in the area this patch touches and the process seems to be hanging in some fault handler occouring in a fault handler occouring in some signal stuff as far as I can tell, my sparc assembler skills are quite limited). Note that the patch given in the mail has still a typo described in http://marc.info/?l=linux-sparc&m=126592005119857&w=2 See also http://marc.info/?l=linux-sparc&m=126592110921290&w=2 (Though I do not know if this fix for the patch is needed for 32 bit sparc kernels Debian afaik no longer has or for 32 bit user space, but I guess adding both is safest in any case). Hochachtungsvoll, Bernhard R. Link This bug also effects (at least) 2.6.32-3 and 2.6.32-5, but I have no idea how to tell this the bts as the binary package name changed. -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100214113651.ga13...@pcpool00.mathematik.uni-freiburg.de