Re: need help how to debug xfs crash issue xfs_iunlink_remove: xfs_inotobp() returned error 22

[符永涛 <yongtaofu@xxxxxxxxx>]

Dear xfs experts,

Can I just call xfs_stack_trace(); in the second line of xfs_do_force_shutdown() to print stack and rebuild kernel to check what's the error?

2013/4/12 符永涛 <yongtaofu@xxxxxxxxx>

Hi Brian,

What else I'm missing? Thank you.

stap -e 'probe module("xfs").function("xfs_iunlink"){}'

WARNING: cannot find module xfs debuginfo: No DWARF information found
semantic error: no match while resolving probe point module("xfs").function("xfs_iunlink")

Pass 2: analysis failed.  Try again with another '--vp 01' option.

2013/4/12 符永涛 <yongtaofu@xxxxxxxxx>

ls -l /usr/lib/debug/lib/modules/2.6.32-279.el6.x86_64/kernel/fs/xfs/xfs.ko.debug
-r--r--r-- 1 root root 21393024 Apr 12 12:08 /usr/lib/debug/lib/modules/2.6.32-279.el6.x86_64/kernel/fs/xfs/xfs.ko.debug

rpm -qa|grep  kernel
kernel-headers-2.6.32-279.el6.x86_64
kernel-devel-2.6.32-279.el6.x86_64
kernel-2.6.32-358.el6.x86_64
kernel-debuginfo-common-x86_64-2.6.32-279.el6.x86_64
abrt-addon-kerneloops-2.0.8-6.el6.x86_64
kernel-firmware-2.6.32-358.el6.noarch
kernel-debug-2.6.32-358.el6.x86_64
kernel-debuginfo-2.6.32-279.el6.x86_64
dracut-kernel-004-283.el6.noarch
libreport-plugin-kerneloops-2.0.9-5.el6.x86_64
kernel-devel-2.6.32-358.el6.x86_64
kernel-2.6.32-279.el6.x86_64

rpm -q kernel-debuginfo
kernel-debuginfo-2.6.32-279.el6.x86_64

rpm -q kernel
kernel-2.6.32-279.el6.x86_64
kernel-2.6.32-358.el6.x86_64

do I need to re probe it?

2013/4/12 Eric Sandeen <sandeen@xxxxxxxxxxx>

On 4/11/13 11:32 PM, 符永涛 wrote:
> Hi Brian,
> Sorry but when I execute the script it says:
> WARNING: cannot find module xfs debuginfo: No DWARF information found
> semantic error: no match while resolving probe point module("xfs").function("xfs_iunlink")
>
> uname -a
> 2.6.32-279.el6.x86_64
> kernel debuginfo has been installed.
>
> Where can I find the correct xfs debuginfo?

it should be in the kernel-debuginfo rpm (of the same version/release as the kernel rpm you're running)

You should have:

/usr/lib/debug/lib/modules/2.6.32-279.el6.x86_64/kernel/fs/xfs/xfs.ko.debug

If not, can you show:

# uname -a
# rpm -q kernel
# rpm -q kernel-debuginfo

-Eric

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符永涛

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符永涛

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符永涛