Re: kernel 2.6.39 (user mode linux) crashes (2.6.38 works fine)

From: Toralf Förster
Date: Fri May 20 2011 - 03:43:19 EST



richard -rw- weinberger wrote at 08:44:39
> > * Starting local
>
> What is this "Starting local",
> was UML crashing while starting your distro?
No, that the last init script of the Gentoo, I'm using within UML.

> I fear the backtrace is garbage.
yep, maybe this helps more :

Program received signal SIGSEGV, Segmentation fault.
0x080a9f6b in futex_wake (uaddr=<value optimized out>, flags=<value optimized out>, nr_wake=<value optimized out>,
bitset=4294967295) at kernel/futex.c:958
958 plist_for_each_entry_safe(this, next, head, list) {
(gdb) bt
#0 0x080a9f6b in futex_wake (uaddr=<value optimized out>, flags=<value optimized out>, nr_wake=<value optimized out>,
bitset=4294967295) at kernel/futex.c:958
#1 0x080abb1d in do_futex (uaddr=0x81efe10, op=0, val=0, timeout=0x0, uaddr2=0x81efe0c, val2=0, val3=4294967295)
at kernel/futex.c:2610
#2 0x080ac184 in sys_futex (uaddr=0x81efe10, op=129, val=1, utime=0x83f89b8, uaddr2=0x81efe0c, val3=134908072)
at kernel/futex.c:2678
#3 0x08060d16 in handle_syscall (r=0x19545290) at arch/um/kernel/skas/syscall.c:35
#4 0x08074cf1 in handle_trap (regs=0x19545290) at arch/um/os-Linux/skas/process.c:201
#5 userspace (regs=0x19545290) at arch/um/os-Linux/skas/process.c:417
#6 0x0805e0cb in fork_handler () at arch/um/kernel/process.c:181
#7 0x00000000 in ?? ()

>
> Can you reproduce the issue using the default config?
yes

> Are you using hostfs?
Yes, but the issue is independend from that.


--
MfG/Sincerely
Toralf Förster
pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3
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