On 3/16/17, Denis Kirjanov <[email protected]> wrote: > Hi guys, > > with the kernel rh7-3.10.0-327.36.1.vz7.18.7 we're seeing the > following WARNING while running LTP test suite: > > [11796.576981] WARNING: at mm/slub.c:1252 > slab_pre_alloc_hook.isra.42.part.43+0x15/0x17() > > [11796.591008] Call Trace: > [11796.592065] [<ffffffff8164c468>] dump_stack+0x19/0x1b > [11796.593076] [<ffffffff8107b850>] warn_slowpath_common+0x70/0xb0 > [11796.594228] [<ffffffff8107b99a>] warn_slowpath_null+0x1a/0x20 > [11796.595442] [<ffffffff81649469>] > slab_pre_alloc_hook.isra.42.part.43+0x15/0x17 > [11796.596686] [<ffffffff811d8b68>] kmem_cache_alloc_trace+0x58/0x230 > [11796.597965] [<ffffffff813126ee>] ? kmapset_new+0x1e/0x50 > [11796.599224] [<ffffffff813126ee>] kmapset_new+0x1e/0x50 > [11796.600433] [<ffffffff8127c7ba>] __sysfs_add_one+0x4a/0xb0 > [11796.601431] [<ffffffff8127c83b>] sysfs_add_one+0x1b/0xd0 > [11796.602451] [<ffffffff8127baa7>] sysfs_add_file_mode+0xb7/0x100 > [11796.603449] [<ffffffff8127bb1a>] sysfs_create_file+0x2a/0x30 > [11796.604461] [<ffffffff812fe12c>] kobject_add_internal+0x16c/0x2f0 > [11796.605503] [<ffffffff812fe5b5>] kobject_add+0x75/0xd0 > [11796.606627] [<ffffffff811d8d17>] ? kmem_cache_alloc_trace+0x207/0x230 > [11796.607655] [<ffffffffa0563091>] __link_block_group+0xe1/0x120 [btrfs] > [11796.608634] [<ffffffffa05661a0>] btrfs_make_block_group+0x150/0x270 > [btrfs] > [11796.609701] [<ffffffffa059fd5f>] __btrfs_alloc_chunk+0x67f/0x8a0 > [btrfs] > [11796.610756] [<ffffffffa05a2eb4>] btrfs_alloc_chunk+0x34/0x40 [btrfs] > [11796.611800] [<ffffffffa055d62f>] do_chunk_alloc+0x23f/0x410 [btrfs] > [11796.612954] [<ffffffffa055e61a>] > btrfs_check_data_free_space+0xea/0x280 [btrfs] > [11796.614008] [<ffffffffa05898a1>] __btrfs_buffered_write+0x151/0x5c0 > [btrfs] > [11796.615153] [<ffffffffa058d056>] btrfs_file_aio_write+0x246/0x560 > [btrfs] > [11796.616141] [<ffffffff811eae92>] ? > __mem_cgroup_commit_charge+0x152/0x350 > [11796.617220] [<ffffffff811faff0>] do_sync_write+0x90/0xe0 > [11796.618253] [<ffffffff811fb81d>] vfs_write+0xbd/0x1e0 > [11796.619224] [<ffffffff811fc2bf>] SyS_write+0x7f/0xe0 > [11796.620185] [<ffffffff8165ccc9>] system_call_fastpath+0x16/0x1b > [11796.621145] ---[ end trace 1437311f89b9e3c6 ]--- >
Guys, I've found your commit: commit 149819fef38230c95f4d6c644061bc8b0dcdd51d Author: Vladimir Davydov <[email protected]> Date: Fri Jun 5 13:20:02 2015 +0400 mm/fs: Port diff-mm-debug-memallocation-caused-fs-reentrance Enable the debug once again, as the issue it found has been fixed: https://jira.sw.ru/browse/PSBM-34112 Previous commit: 255427905323ac97a3c9b2d5acb2bf21ea2b31f6. Author: Dmitry Monakhov Email: [email protected] Subject: mm: debug memallocation caused fs reentrance Date: Sun, 9 Nov 2014 11:53:14 +0400 But I can't open a link to figure out the original reason for the patch. > Thanks! > _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
