https://bugzilla.suse.com/show_bug.cgi?id=1212833 https://bugzilla.suse.com/show_bug.cgi?id=1212833#c3 Anthony Iliopoulos <ailiopoulos@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ailiopoulos@suse.com --- Comment #3 from Anthony Iliopoulos <ailiopoulos@suse.com> --- looks like irqbalance reading /proc/interrupts is causing a null ptr deref at 000000000000005a (the rcu stall warnings is a side-effect, due to irqbalance crashing while being in a rcu reader critical section, and can be ignored). show_interrupts+0x24c corresponds kernel/irq/proc:529:
seq_printf(p, " %s", action->name);
and that implies that action->next was pointing to 0xa. Normally action->next is set when the irq line is shared, not sure what may be corrupting it here. You could perhaps add the following boot params:
kprobe_event="p request_threaded_irq irq=$arg1 handler=$arg2 thread_fn=$arg3 devname=+0($arg5):string dev_id=$arg6;p free_irq irq=$arg1 dev_id=$arg2;p __setup_irq irq=$arg1 desc=$arg2 new=$arg3 desc_action=+160($arg2)" ftrace_dump_on_oops trace_options=stacktrace
(append the above to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and run update-grub) after rebooting (and assuming the issue is reproduced), please attach the ftrace output (cat /sys/kernel/tracing/trace or from dmesg logs) -- You are receiving this mail because: You are on the CC list for the bug.