From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Message-ID: <48AE6C38.9040507@bull.net> Date: Fri, 22 Aug 2008 09:35:20 +0200 From: Le Rouzic To: nfsv4 Subject: linux-2.6.27-rc3: kernel BUG at fs/nfs/write.c:252 Cc: Linux NFS Mailing list , nfs@lists.sourceforge.net List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Sender: nfsv4-bounces@linux-nfs.org Errors-To: nfsv4-bounces@linux-nfs.org MIME-Version: 1.0 List-ID: Hi, Client and server On Intel X86_64 with linux-2.6.27-rc3. Doing several stress benchmarks simultaneously: fsstress iozone (without -U ) fsx ffsb cthon The server crashed. Here is the trace on the server: ------------[ cut here ]------------ kernel BUG at fs/nfs/write.c:252! Entering kdb (current=0xffff8800621c78d0, pid 25953) on processor 1 due to KDB_ENTER() [1]kdb> bt Stack traceback for pid 25953 0xffff8800621c78d0 25953 5308 1 1 R 0xffff8800621c7c38 *fsx-linux sp ip Function (args) 0xffff8800660cdb88 0xffffffff80330871 nfs_do_writepage+0xe7 (0xffffe20001770140, invalid, 0xffff8800660cdd18) 0xffff8800660cdbf0 0xffffffff80330cd0 nfs_writepages_callback+0xf (0xffffe20001770140) 0xffff8800660cdc10 0xffffffff802657f9 write_cache_pages+0x1ca (0xffff880062402468, 0xffff8800660cddc8, 0xffffffff80330cc1, 0xffff8800660cdd18) 0xffff8800660cdd10 0xffffffff80330c95 nfs_writepages+0x72 (0xffff880062402468, 0xffff8800660cddc8) 0xffff8800660cdd90 0xffffffff803315b6 __nfs_write_mapping+0x19 (0xffff880062402468, 0xffff8800660cddc8, invalid) 0xffff8800660cddc0 0xffffffff80331655 nfs_write_mapping+0x68 (0xffff880062402468, invalid) 0xffff8800660cde30 0xffffffff80331675 nfs_wb_nocommit+0x15 (invalid) 0xffff8800660cde40 0xffffffff80327638 nfs_getattr+0x5c (0xffff88007fbbf1c0, invalid, 0xffff8800660cdef8) 0xffff8800660cde80 0xffffffff8028c637 vfs_getattr+0x44 (0xffff88007fbbf1c0, 0xffff8800664e00b8, 0xffff8800660cdef8) 0xffff8800660cdec0 0xffffffff8028c687 vfs_fstat+0x33 (invalid, 0xffff8800660cdef8) 0xffff8800660cdef0 0xffffffff8028c6b8 sys_newfstat+0x1a (invalid, 0x7fffec90f890) not matched: from 0xffffffff8020bead to 0xffffffff8020bf25 drop_through 0 bb_jmp[7] bb_special_case: Invalid bb_reg_state.memory, missing trailing entries bb_special_case: on transfer to int_with_check system_call_fastpath has memory parameters but no register parameters. Assuming it is a 'pass through' function that does not refer to its register parameters and setting 6 register parameters kdb_bb: 0xffffffff8020be3b [kernel]system_call_fastpath failed at 0xffffffff8020bec8 Using old style backtrace, unreliable with no arguments sp ip Function (args) 0xffff8800660cdb88 0xffffffff80330871 nfs_do_writepage+0xe7 0xffff8800660cdbb0 0xffffffff80330871 nfs_do_writepage+0xe7 0xffff8800660cdbf0 0xffffffff80330cd0 nfs_writepages_callback+0xf 0xffff8800660cdc10 0xffffffff802657f9 write_cache_pages+0x1ca 0xffff8800660cdc20 0xffffffff80330cc1 nfs_writepages_callback 0xffff8800660cdc68 0xffffffff8032d3bc nfs_wait_bit_killable 0xffff8800660cdc80 0xffffffff80603a87 out_of_line_wait_on_bit+0x6e 0xffff8800660cdca8 0xffffffff8023f9b8 wake_bit_function 0xffff8800660cdd10 0xffffffff80330c95 nfs_writepages+0x72 0xffff8800660cdd50 0xffffffff80331c41 nfs_flush_one 0xffff8800660cdd90 0xffffffff803315b6 __nfs_write_mapping+0x19 0xffff8800660cddc0 0xffffffff80331655 nfs_write_mapping+0x68 0xffff8800660cde30 0xffffffff80331675 nfs_wb_nocommit+0x15 0xffff8800660cde40 0xffffffff80327638 nfs_getattr+0x5c 0xffff8800660cde80 0xffffffff8028c637 vfs_getattr+0x44 0xffff8800660cdec0 0xffffffff8028c687 vfs_fstat+0x33 0xffff8800660cdef0 0xffffffff8028c6b8 sys_newfstat+0x1a 0xffff8800660cdf40 0xffffffff80242540 up_write+0x9 0xffff8800660cdf50 0xffffffff802731c5 sys_munmap+0x4d Bug registered at: ------------------------------------------------------------- Bug: http://bugzilla.linux-nfs.org/show_bug.cgi?id=168 Best Regards -- ----------------------------------------------------------------- Company : Bull, Architect of an Open World TM (www.bull.com) Name : Aime Le Rouzic Mail : Bull - BP 208 - 38432 Echirolles Cedex - France E-Mail : aime.le-rouzic@bull.net Phone : 33 (4) 76.29.75.51 Fax : 33 (4) 76.29.75.18 ----------------------------------------------------------------- _______________________________________________ NFSv4 mailing list NFSv4@linux-nfs.org http://linux-nfs.org/cgi-bin/mailman/listinfo/nfsv4