[Gluster-devel] index_lookup segfault in glusterfsd brick process

[Pranith Kumar Karampuri]

On Wed, Oct 3, 2018 at 11:20 PM 김경표 <kpkim at gluesys.com> wrote:

> Hello folks.
>
> Few days ago I found my EC(4+2) volume was degraded.
> I am using 3.12.13-1.el7.x86_64.
> One brick was down, below is bricklog
> I am suspicious loc->inode bug in index.c (see attached picture)
> In GDB, loc->inode is null
>
>> inode_find (loc->inode->table, loc->gfid);
>>
>
I see that loc->inode is coming from resolve_gfid() where the following
should have been executed.
  0         resolve_loc->inode = server_inode_new
(state->itable,

  1                                                resolve_loc->gfid);

As per the log:
"[2018-09-29 13:22:36.536579] W [inode.c:680:inode_new]
(-->/usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xd048)
[0x7f9bd2494048]
-->/usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xc14d)
[0x7f9bd249314d] -->/lib64/libglusterfs.so.0(inode_new+0x8a) [0x
7f9be70900ba] ) 0-gluvol02-05-server: inode not found"

it indicates that inode-table is NULL. Is there a possibility to upload the
core somewhere for us to take a closer look?


> Thansk for Gluster Community!!!
>
> - kpkim
>
> ----------------------
> [2018-09-29 13:22:36.536532] W [inode.c:942:inode_find]
> (-->/usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xd01c)
> [0x7f9bd249401c]
> -->/usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xc638)
> [0x7f9bd2493638] -->/lib64/libglusterfs.so.0(inode_find+0x92) [
> 0x7f9be7090a82] ) 0-gluvol02-05-server: table not found
> [2018-09-29 13:22:36.536579] W [inode.c:680:inode_new]
> (-->/usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xd048)
> [0x7f9bd2494048]
> -->/usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xc14d)
> [0x7f9bd249314d] -->/lib64/libglusterfs.so.0(inode_new+0x8a) [0x
> 7f9be70900ba] ) 0-gluvol02-05-server: inode not found
> [2018-09-29 13:22:36.537568] W [inode.c:2305:inode_is_linked]
> (-->/usr/lib64/glusterfs/3.12.13/xlator/features/quota.so(+0x4fc6)
> [0x7f9bd2b1cfc6]
> -->/usr/lib64/glusterfs/3.12.13/xlator/features/index.so(+0x4bb9)
> [0x7f9bd2d43bb9] -->/lib64/libglusterfs.so.0(inode_is_linke
> d+0x8a) [0x7f9be70927ea] ) 0-gluvol02-05-index: inode not found
> pending frames:
> frame : type(0) op(18)
> frame : type(0) op(18)
> frame : type(0) op(28)
> --snip --
> frame : type(0) op(28)
> frame : type(0) op(28)
> frame : type(0) op(18)
> patchset: git://git.gluster.org/glusterfs.git
> signal received: 11
> time of crash:
> 2018-09-29 13:22:36
> configuration details:
> argp 1
> backtrace 1
> dlfcn 1
> libpthread 1
> llistxattr 1
> setfsid 1
> spinlock 1
> epoll.h 1
> xattr.h 1
> st_atim.tv_nsec 1
> package-string: glusterfs 3.12.13
> /lib64/libglusterfs.so.0(_gf_msg_backtrace_nomem+0xa0)[0x7f9be70804c0]
> /lib64/libglusterfs.so.0(gf_print_trace+0x334)[0x7f9be708a3f4]
> /lib64/libc.so.6(+0x362f0)[0x7f9be56e02f0]
>
> /usr/lib64/glusterfs/3.12.13/xlator/features/index.so(+0x4bc4)[0x7f9bd2d43bc4]
>
> /usr/lib64/glusterfs/3.12.13/xlator/features/quota.so(+0x4fc6)[0x7f9bd2b1cfc6]
>
> /usr/lib64/glusterfs/3.12.13/xlator/debug/io-stats.so(+0x4e53)[0x7f9bd28eee53]
> /lib64/libglusterfs.so.0(default_lookup+0xbd)[0x7f9be70fddfd]
>
> /usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xc342)[0x7f9bd2493342]
>
> /usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xd048)[0x7f9bd2494048]
>
> /usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xd2c0)[0x7f9bd24942c0]
>
> /usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xc89e)[0x7f9bd249389e]
>
> /usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0xd354)[0x7f9bd2494354]
>
> /usr/lib64/glusterfs/3.12.13/xlator/protocol/server.so(+0x2f829)[0x7f9bd24b6829]
> /lib64/libgfrpc.so.0(rpcsvc_request_handler+0x96)[0x7f9be6e42246]
> /lib64/libpthread.so.0(+0x7e25)[0x7f9be5edfe25]
> /lib64/libc.so.6(clone+0x6d)[0x7f9be57a8bad]
>

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-- 
Pranith
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