Re: [ANNOUNCE] 2.6.31-rc4-rt1 (problem with CONFIG_SYSFS_DEPRECATED_V2)

gowrishankar
2009-08-06T06:46:30Z

Clark Williams wrote:
> On Wed, 05 Aug 2009 11:36:03 +0530
> gowrishankar <gowrishankar.m@linux.vnet.ibm.com> wrote:
>
>> Thomas Gleixner wrote:
>>> We are pleased to announce the next update to our new preempt-rt
>>> series.
>>>
>>> - update to 2.6.31-rc4
>> Hi,
>> I am seeing below kernel panic on 8 way Intel and 4 way AMD blades.
>>
>> Kernel panic - not syncing: Attempted to kill init!
>> Pid: 1, comm: init Not tainted 2.6.31-rc4-rt1-autotest #1
>> Call Trace:
>> [<ffffffff8104c887>] panic+0xc1/0x171
>> [<ffffffff8104ec9a>] ? put_files_struct+0xc3/0xe6
>> [<ffffffff81394313>] ? rt_write_unlock+0x1c/0x32
>> [<ffffffff810582fd>] ? exit_ptrace+0xab/0x130
>> [<ffffffff81394313>] ? rt_write_unlock+0x1c/0x32
>> [<ffffffff810500af>] do_exit+0x88/0x726
>> [<ffffffff810507d5>] do_group_exit+0x88/0xbb
>> [<ffffffff8105082d>] sys_exit_group+0x25/0x3d
>> [<ffffffff8100be2b>] system_call_fastpath+0x16/0x1b
>>
>> Thanks,
>> Gowri
>
> Gowri,
>
> Would you post your .config so we can see what options you have enabled?
>
Hi Clark,
Thanks for the attention. I just looked at error message before the trace I posted.

setuproot: moving /dev failed: No such file or directory
no fstab.sys, mounting internal defaults
setuproot: error mounting /proc: No such file or directory
setuproot: error mounting /sys: No such file or directory
Switching to new root and running init.
unmounting old /dev
unmounting old /proc
unmounting old /sys
switchroot: mount failed: No such file or directory

Only if I set CONFIG_SYSFS_DEPRECATED_V2=y, I could successfully boot
which I have tested with this kernel in same system.

Is it not set by default from 2.6.31 onwards ?

Thanks,
Gowri

> Clark
>