[uml-devel] v3.3-6972-ge22057c core dumped

[uml-devel] v3.3-6972-ge22057c core dumped

[Toralf Förster]

Hello,

I'm unsure whetehr it is worth/helpful to report core dumps during merge window, but nevertheless here's a backtrace :


tfoerste@n22 ~ $ gdb --core=core /usr/local/bin/linux-v3.3-6972-ge22057c 
GNU gdb (Gentoo 7.3.1 p2) 7.3.1
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-pc-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.gentoo.org/>...
Reading symbols from /usr/local/bin/linux-v3.3-6972-ge22057c...done.

warning: core file may not match specified executable file.
[New LWP 17250]
[New LWP 17263]

warning: Can't read pathname for load map: Input/output error.
Core was generated by `/usr/local/bin/linux-v3.3-6972-ge22057c -h'.
Program terminated with signal 6, Aborted.
#0  0xb7778424 in __kernel_vsyscall ()
(gdb) bt
#0  0xb7778424 in __kernel_vsyscall ()
#1  0x4ecd7446 in kill () at ../sysdeps/unix/syscall-template.S:82
#2  0x08073825 in uml_abort () at arch/um/os-Linux/util.c:93
#3  0x08073b65 in os_dump_core () at arch/um/os-Linux/util.c:138
#4  0x080617e7 in panic_exit (self=0x83774d8, unused1=0, unused2=0x8399e20) at arch/um/kernel/um_arch.c:235
#5  0x0809bfda in notifier_call_chain (nl=<optimized out>, val=0, v=0x8399e20, nr_to_call=-2, nr_calls=0x0)
    at kernel/notifier.c:93
#6  0x0809c123 in __atomic_notifier_call_chain (nr_calls=0x0, nr_to_call=-1, v=0x8399e20, val=0, nh=0x8399dc0)
    at kernel/notifier.c:182
#7  atomic_notifier_call_chain (nh=0x8399dc0, val=0, v=0x8399e20) at kernel/notifier.c:191
#8  0x082ea47e in panic (fmt=0x833abd0 "VFS: Unable to mount root fs on %s") at kernel/panic.c:120
#9  0x08049be8 in mount_block_root (name=0x833a812 "/dev/root", flags=<optimized out>) at init/do_mounts.c:385
#10 0x08049cde in mount_root () at init/do_mounts.c:497
#11 0x08049e23 in prepare_namespace () at init/do_mounts.c:555
#12 0x0804992b in kernel_init (unused=0x0) at init/main.c:829
#13 0x0807189e in run_kernel_thread (fn=0x8049816 <kernel_init>, arg=0x0, jmp_ptr=0xa464440)
    at arch/um/os-Linux/process.c:257
#14 0x0805ecf5 in new_thread_handler () at arch/um/kernel/process.c:154
#15 0x00000000 in ?? ()


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

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Re: [uml-devel] v3.3-6972-ge22057c core dumped

[Richard Weinberger]

Am 26.03.2012 11:02, schrieb Toralf Förster:
> #8  0x082ea47e in panic (fmt=0x833abd0 "VFS: Unable to mount root fs on %s") at kernel/panic.c:120

Sounds like a non-Bug.
Please double-check!

Thanks,
//richard

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