Just an update, kernel crash occurs even when running iozone in automode, please see the updated /var/log/messages Jul 30 21:26:21 localhost kernel: FS-Cache: Loaded Jul 30 21:26:22 localhost kernel: FS-Cache: Netfs 'nfs' registered for caching Jul 30 21:29:22 localhost kernel: nfs: server 192.168.100.12 not responding, ti med out Jul 30 21:29:22 localhost kernel: Error: state manager failed on NFSv4 server 1 92.168.100.12 with error 5 Jul 30 21:37:38 localhost kernel: nfs4filelayout_init: NFSv4 File Layout Driver Registering... Jul 30 21:39:29 localhost kernel: BUG: unable to handle kernel NULL pointer der eference at 0000000000000030 Jul 30 21:39:29 localhost kernel: IP: [<ffffffff814411d4>] _raw_spin_lock+0xe/0 x25 Jul 30 21:39:29 localhost kernel: PGD 0 Jul 30 21:39:29 localhost kernel: Oops: 0002 [#1] SMP Jul 30 21:39:29 localhost kernel: last sysfs file: /sys/devices/pci0000:00/0000 :00:19.0/irq Jul 30 21:39:29 localhost kernel: CPU 3 Jul 30 21:39:29 localhost kernel: Modules linked in: nfslayoutdriver nfs lockd fscache nfs_acl auth_rpcgss sunrpc ipv6 p4_clockmod freq_table speedstep_lib dm _multipath uinput e1000e iTCO_wdt iTCO_vendor_support i2c_i801 pcspkr serio_raw usb_storage i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last u nloaded: mperf] Jul 30 21:39:29 localhost kernel: Jul 30 21:39:29 localhost kernel: Pid: 1629, comm: 192.168.100.12- Not tainted 2.6.35-rc5-pnfs #1 To be filled by O.E.M./To Be Filled By O.E.M. Jul 30 21:39:29 localhost kernel: RIP: 0010:[<ffffffff814411d4>] [<ffffffff814 411d4>] _raw_spin_lock+0xe/0x25 Jul 30 21:39:29 localhost kernel: RSP: 0018:ffff8800700b5cb0 EFLAGS: 00010282 Jul 30 21:39:29 localhost kernel: RAX: 0000000000010000 RBX: 0000000000000000 R CX: 000000000020001d Jul 30 21:39:29 localhost kernel: RDX: ffff88007bfc9900 RSI: ffffffffa0225fe0 R DI: 0000000000000030 Jul 30 21:39:29 localhost kernel: RBP: ffff8800700b5cb0 R08: ffff88007c7c1800 R 09: ffff880000000001 Jul 30 21:39:29 localhost kernel: R10: ffff88007bfc9c00 R11: ffff880070b12a00 R 12: ffffffffa0225fe0 Jul 30 21:39:29 localhost kernel: R13: ffff880070bdaf64 R14: ffff88007979f800 R 15: ffff8800700b5d60 Jul 30 21:39:29 localhost kernel: FS: 0000000000000000(0000) GS:ffff8800021800 00(0000) knlGS:0000000000000000 Jul 30 21:39:29 localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005 003b Jul 30 21:39:29 localhost kernel: CR2: 0000000000000030 CR3: 0000000001a42000 C R4: 00000000000006e0 Jul 30 21:39:29 localhost kernel: DR0: 0000000000000000 DR1: 0000000000000000 D R2: 0000000000000000 Jul 30 21:39:29 localhost kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 D R7: 0000000000000400 Jul 30 21:39:29 localhost kernel: Process 192.168.100.12- (pid: 1629, threadinf o ffff8800700b4000, task ffff8800796e1730) Jul 30 21:39:29 localhost kernel: Stack: Jul 30 21:39:29 localhost kernel: ffff8800700b5cc0 ffffffffa0212c6e ffff8800700 b5ce0 ffffffffa0214168 Jul 30 21:39:29 localhost kernel: <0> ffff880070bdaf00 ffff880070bdaf54 ffff880 0700b5d00 ffffffffa0201ab1 Jul 30 21:39:29 localhost kernel: <0> ffff8800700b5d00 ffff880070bdaf00 ffff880 0700b5d40 ffffffffa0201b92 Jul 30 21:39:29 localhost kernel: Call Trace: Jul 30 21:39:29 localhost kernel: [<ffffffffa0212c6e>] spin_lock+0xe/0x10 [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffffa0214168>] pnfs_set_layout_stateid+ 0x1b/0x3b [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffffa0201ab1>] pnfs4_layout_reclaim+0x3 5/0x39 [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffffa0201b92>] nfs4_open_recover+0xdd/0 xf1 [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffffa0201d04>] nfs4_open_delegation_rec all+0x80/0x13f [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffffa020e7e0>] __nfs_inode_return_deleg ation+0xc7/0x1f5 [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffff810caf61>] ? do_writepages+0x21/0x2 a Jul 30 21:39:29 localhost kernel: [<ffffffffa020e9ff>] nfs_client_return_marked _delegations+0x85/0xc6 [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffffa020d7da>] nfs4_run_state_manager+0 x368/0x494 [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffffa020d472>] ? nfs4_run_state_manager +0x0/0x494 [nfs] Jul 30 21:39:29 localhost kernel: [<ffffffff81064bd9>] kthread+0x7f/0x87 Jul 30 21:39:29 localhost kernel: [<ffffffff8100aa24>] kernel_thread_helper+0x4 /0x10 Jul 30 21:39:29 localhost kernel: [<ffffffff81064b5a>] ? kthread+0x0/0x87 Jul 30 21:39:29 localhost kernel: [<ffffffff8100aa20>] ? kernel_thread_helper+0 x0/0x10 Jul 30 21:39:29 localhost kernel: Code: c2 8d 90 00 00 01 00 75 04 f0 0f b1 17 0f 94 c2 0f b6 c2 85 c0 c9 0f 95 c0 0f b6 c0 c3 55 48 89 e5 0f 1f 44 00 00 b8 0 0 00 01 00 <f0> 0f c1 07 0f b7 d0 c1 e8 10 39 c2 74 07 f3 90 0f b7 17 eb f5 Jul 30 21:39:29 localhost kernel: RIP [<ffffffff814411d4>] _raw_spin_lock+0xe/ 0x25 On Fri, Jul 30, 2010 at 11:58 PM, Trond Myklebust <trond.myklebust@xxxxxxxxxx> wrote: > On Thu, 2010-07-29 at 12:39 +0800, Bian Naimeng wrote: >> > Hello, >> > >> > I am running Kernel version 2.6.35-rc5-pnfs and notice there is kernel >> > crash everytime i run iozone on the mounted directory. Is there a >> > patch already developed for this bug which i can apply. Please see the >> > error message from message log. >> > >> >> I'm not sure it's ok, please try it. >> >> ---- >> >> nfs_writeargs.lock_context always NULL at direct write procedure, >> it will cause kernel panic when encode stateid. >> >> Signed-off-by: Bian Naimeng <biannm@xxxxxxxxxxxxxx> >> >> --- >> fs/nfs/direct.c | 1 + >> 1 files changed, 1 insertions(+), 0 deletions(-) >> >> diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c >> index 3ef9b0c..cb2e1fd 100644 >> --- a/fs/nfs/direct.c >> +++ b/fs/nfs/direct.c >> @@ -801,6 +801,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq, >> data->cred = msg.rpc_cred; >> data->args.fh = NFS_FH(inode); >> data->args.context = ctx; >> + data->args.lock_context = nfs_get_lock_context(ctx); >> data->args.offset = pos; >> data->args.pgbase = pgbase; >> data->args.pages = data->pagevec; >> -- >> 1.6.5.2 >> > > Well caught. There is a similar issue with NFS reads too. I'll fix up > the lock state tracking patch... > > Thanks > Trond > > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
