[Gluster-devel] servers keep hanging with fuse errors

Jordi Moles jordi at cdmon.com
Wed Jan 30 09:45:51 UTC 2008


i'm running this versions of the packages now:

ii  fuse-utils                     
2.7.2-glfs8                              Filesystem in USErspace (utilities)
ii  glusterfs-client               
1.3.8-TLA643                             GlusterFS fuse client
ii  libfuse2                       
2.7.2-glfs8                              Filesystem in USErspace library

I also removed any kind of lock method from dovecot.conf and added the 
lock function to the filesystem itself, on the server side, with the
"type features/posix-locks" option.
The thing is that now, dovecots work grate, but postfixs hang very 
often, with the following error:


Unable to handle kernel paging request at 0000000000100108 RIP:
 [<ffffffff88020838>] :fuse:request_end+0x45/0x109
PGD 1f29c067 PUD 1f327067 PMD 0
Oops: 0002 [1] SMP
Modules linked in: ipv6 fuse dm_snapshot dm_mirror dm_mod
Pid: 723, comm: glusterfs Not tainted 2.6.18-xen #1
RIP: e030:[<ffffffff88020838>]  [<ffffffff88020838>] 
RSP: e02b:ffff88001ecb1d68  EFLAGS: 00010246
RAX: 0000000000200200 RBX: ffff88001e82af48 RCX: ffff88001e82af58
RDX: 0000000000100100 RSI: ffff88001e82af48 RDI: ffff88001f68d400
RBP: ffff88001f68d400 R08: 000000001f74ab40 R09: ffff88001e82b048
R10: 0000000000000008 R11: ffff88001ecb1cf0 R12: 0000000000000000
R13: ffff88001e82af80 R14: ffff88001ecb1df8 R15: 0000000000000001
FS:  00002ba3e961aae0(0063) GS:ffffffff804cd000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000
Process glusterfs (pid: 723, threadinfo ffff88001ecb0000, task 
Stack:  ffff88001e82af48 ffff88001f68d400 00000000fffffffe ffffffff88021056
 ffff88001ecb1ef8 000000301fcb8180 00000156fffffff4 ffff88001f72f100
 0000000000000015 0000000000000000 ffff88001ecb1e18 0000000041000a90
Call Trace:
 [<ffffffff88021056>] :fuse:fuse_dev_readv+0x385/0x435
 [<ffffffff802801d3>] do_readv_writev+0x271/0x294
 [<ffffffff802274c7>] default_wake_function+0x0/0xe
 [<ffffffff88021120>] :fuse:fuse_dev_read+0x1a/0x1f
 [<ffffffff802804bc>] vfs_read+0xcb/0x171
 [<ffffffff8028089b>] sys_read+0x45/0x6e
 [<ffffffff8020a436>] system_call+0x86/0x8b
 [<ffffffff8020a3b0>] system_call+0x0/0x8b

Code: 48 89 42 08 48 89 10 48 c7 41 08 00 02 20 00 f6 46 30 08 48
RIP  [<ffffffff88020838>] :fuse:request_end+0x45/0x109
 RSP <ffff88001ecb1d68>
CR2: 0000000000100108
  postfix01gluster01 kernel: Oops: 0002 [1] SMP
kernel: CR2: 0000000000100108
<3>BUG: soft lockup detected on CPU#0!

Call Trace:
 <IRQ> [<ffffffff80257f78>] softlockup_tick+0xd8/0xea
 [<ffffffff8020f110>] timer_interrupt+0x3a9/0x405
 [<ffffffff80258264>] handle_IRQ_event+0x4e/0x96
 [<ffffffff80258350>] __do_IRQ+0xa4/0x105
 [<ffffffff8020b0e8>] call_softirq+0x1c/0x28
 [<ffffffff8020cecb>] do_IRQ+0x65/0x73
 [<ffffffff8034a8c1>] evtchn_do_upcall+0xac/0x12d
 [<ffffffff8020ac1e>] do_hypervisor_callback+0x1e/0x2c
 <EOI> [<ffffffff803f1234>] .text.lock.spinlock+0x2/0x8a
 [<ffffffff88020a4f>] :fuse:fuse_dev_writev+0xb8/0x31b
 [<ffffffff88020cb2>] :fuse:fuse_dev_write+0x0/0x1f
 [<ffffffff802800d7>] do_readv_writev+0x175/0x294
 [<ffffffff88020cb2>] :fuse:fuse_dev_write+0x0/0x1f
 [<ffffffff803efb3b>] schedule_timeout+0x1e/0xad
 [<ffffffff803f0976>] __down_read+0x12/0xec
 [<ffffffff80280695>] sys_writev+0x45/0x93
 [<ffffffff8020a436>] system_call+0x86/0x8b
 [<ffffffff8020a3b0>] system_call+0x0/0x8b


i set the log level for glusterfs on both nodes and clients to WARNING. 
However, nothing was written on any of them :( .
I keep using virtual machines with xen 3.1 to test all this, but i 
already tried with non-virtual environments and got the same errors.

Do you have any ideas?

En/na Jordi Moles Blanco ha escrit:
> hi,
> thanks for the details, i'll give it a try and come back to you to tell
> whether has become stable or not.
> Thank you very much.
> El dt 29 de 01 del 2008 a les 01:11 +0530, en/na Anand Avati va
> escriure:
>> Jordi,
>>  you should really upgrade your fuse kernel module which will fix this
>> issue. please use the kernel module from -
>> http://ftp.zresearch.com/pub/gluster/glusterfs/fuse/
>> thanks,
>> avati
>> 2008/1/28, Jordi Moles <jordi at cdmon.com>:
>>         Hi,
>>         i'm sorry but i can't get any newer version with the
>>         repositories you
>>         gave me, after apt-update, apt-upgrade says there's nothing to
>>         upgrade.
>>         And i try, for example, to get the source code of every
>>         package, i get this
>>         fuse_2.5.3-4.4, which is even older than the one installed on
>>         my system.
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