On Tue, Jul 03, 2018 at 09:50:37PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > > Fuzz every field of every structure and then try to write the > filesystem, to see how many of these writes can crash the kernel. > > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> The "re-repair" failures are gone, but I still see some test failures like (xfs/1398 for example) +re-mount failed (32) with magic = zeroes. +re-mount failed (32) with magic = ones. ... Looks like the re-mount is expected to fail as we skipped all the repair work. Also, there're _check_dmesg failures too (they were buried among other failures so I didn't notice them in last review), like this "Internal error" from xfs/1397 [1513573.879719] [U] ++ Try to write filesystem again [1513574.092652] XFS (dm-1): Internal error XFS_WANT_CORRUPTED_GOTO at line 756 of file fs/xfs/libxfs/xfs_rmap.c. Caller xfs_rmap_finish_one+0x206/0x2b0 [xfs] [1513574.094001] CPU: 1 PID: 7087 Comm: kworker/u4:2 Tainted: G W OE 4.18.0-rc1 #1 [1513574.094839] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.fc28 04/01/2014 [1513574.095650] Workqueue: writeback wb_workfn (flush-253:1) [1513574.096145] Call Trace: [1513574.096390] dump_stack+0x5c/0x80 [1513574.096719] xfs_rmap_map+0x18c/0x8d0 [xfs] [1513574.097138] ? xfs_free_extent_fix_freelist+0x7d/0xb0 [xfs] [1513574.097662] ? _cond_resched+0x15/0x30 [1513574.098021] ? kmem_cache_alloc+0x16a/0x1d0 [1513574.098435] ? kmem_zone_alloc+0x61/0xe0 [xfs] [1513574.098877] xfs_rmap_finish_one+0x206/0x2b0 [xfs] [1513574.099355] ? xfs_trans_free+0x55/0xc0 [xfs] [1513574.099788] xfs_trans_log_finish_rmap_update+0x2f/0x40 [xfs] [1513574.100346] xfs_rmap_update_finish_item+0x2d/0x40 [xfs] [1513574.100865] xfs_defer_finish+0x164/0x470 [xfs] [1513574.101318] ? xfs_rmap_update_cancel_item+0x10/0x10 [xfs] [1513574.101852] xfs_iomap_write_allocate+0x182/0x370 [xfs] [1513574.102371] xfs_map_blocks+0x209/0x290 [xfs] [1513574.102819] xfs_do_writepage+0x147/0x690 [xfs] [1513574.103265] ? clear_page_dirty_for_io+0x224/0x290 [1513574.103718] write_cache_pages+0x1dc/0x450 [1513574.104141] ? xfs_vm_readpage+0x70/0x70 [xfs] [1513574.104594] ? btrfs_wq_submit_bio+0xc9/0xf0 [btrfs] [1513574.105098] xfs_vm_writepages+0x59/0x90 [xfs] [1513574.105534] do_writepages+0x41/0xd0 [1513574.105886] ? __switch_to_asm+0x40/0x70 [1513574.106281] ? __switch_to_asm+0x34/0x70 [1513574.106673] ? __switch_to_asm+0x40/0x70 [1513574.107067] ? __switch_to_asm+0x34/0x70 [1513574.107453] ? __switch_to_asm+0x40/0x70 [1513574.107843] ? __switch_to_asm+0x34/0x70 [1513574.108235] ? __switch_to_asm+0x40/0x70 [1513574.108623] ? __switch_to_asm+0x34/0x70 [1513574.109016] ? __switch_to_asm+0x40/0x70 [1513574.109406] ? __switch_to_asm+0x40/0x70 [1513574.109790] __writeback_single_inode+0x3d/0x350 [1513574.110247] writeback_sb_inodes+0x1d0/0x460 [1513574.110669] __writeback_inodes_wb+0x5d/0xb0 [1513574.111172] wb_writeback+0x255/0x2f0 [1513574.111535] ? get_nr_inodes+0x35/0x50 [1513574.111904] ? cpumask_next+0x16/0x20 [1513574.112273] wb_workfn+0x186/0x400 [1513574.112608] ? sched_clock+0x5/0x10 [1513574.112955] process_one_work+0x1a1/0x350 [1513574.113343] worker_thread+0x30/0x380 [1513574.113702] ? wq_update_unbound_numa+0x1a0/0x1a0 [1513574.114158] kthread+0x112/0x130 [1513574.114484] ? kthread_create_worker_on_cpu+0x70/0x70 [1513574.114980] ret_from_fork+0x35/0x40 [1513574.115352] XFS (dm-1): xfs_do_force_shutdown(0x8) called from line 222 of file fs/xfs/libxfs/xfs_defer.c. Return address = 0000000000b9898a [1513574.309527] XFS (dm-1): Corruption of in-memory data detected. Shutting down filesystem [1513574.313154] XFS (dm-1): Please umount the filesystem and rectify the problem(s) Should the dmesg check be disabled as well? Thanks, Eryu P.S. BTW, patch 1/1 looks fine, I'll take it for this week's update. -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
