From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Christoph Hellwig <hch@lst.de>
Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-block@vger.kernel.org, linux-mm@kvack.org
Subject: Re: stop using buffer heads in xfs and iomap
Date: Thu, 10 May 2018 08:13:03 -0700 [thread overview]
Message-ID: <20180510151303.GW11261@magnolia> (raw)
In-Reply-To: <20180509074830.16196-1-hch@lst.de>
On Wed, May 09, 2018 at 09:47:57AM +0200, Christoph Hellwig wrote:
> Hi all,
>
> this series adds support for reading blocks from disk using the iomap
> interface, and then gradually switched the buffered I/O path to not
> require buffer heads. It has survived xfstests for 1k and 4k block
> size.
>
> There are various small changes to the core VFS, block and readahead
> code to make this happen.
>
>
> A git tree is available at:
>
> git://git.infradead.org/users/hch/xfs.git xfs-remove-bufferheads
>
> Gitweb:
>
> http://git.infradead.org/users/hch/xfs.git/shortlog/refs/heads/xfs-remove-bufferheads
I ran xfstests on this for fun last night but hung in g/095:
FSTYP -- xfs (debug)
PLATFORM -- Linux/x86_64 submarine-djwong-mtr01 4.17.0-rc4-djw
MKFS_OPTIONS -- -f -m reflink=1,rmapbt=1, -i sparse=1, -b size=1024, /dev/sdf
MOUNT_OPTIONS -- /dev/sdf /opt
FWIW the stock v4 and the 'v5 with everything and 4k blocks' vms
passed, so I guess there's a bug somewhere in the sub-page block size
code paths...
--D
[ 2586.943205] run fstests generic/095 at 2018-05-09 23:28:01
[ 2587.252740] XFS (sdf): Unmounting Filesystem
[ 2587.908441] XFS (sdf): Mounting V5 Filesystem
[ 2587.914685] XFS (sdf): Ending clean mount
[ 2702.258764] INFO: task kworker/u10:3:11834 blocked for more than 60 seconds.
[ 2702.261734] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.263607] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.265600] kworker/u10:3 D11984 11834 2 0x80000000
[ 2702.273445] Workqueue: writeback wb_workfn (flush-8:80)
[ 2702.274751] Call Trace:
[ 2702.275339] ? __schedule+0x3e4/0xa70
[ 2702.276112] ? blk_flush_plug_list+0xe4/0x280
[ 2702.277086] schedule+0x40/0x90
[ 2702.277967] io_schedule+0x16/0x40
[ 2702.278774] __lock_page+0x12d/0x160
[ 2702.279680] ? page_cache_tree_insert+0x100/0x100
[ 2702.280712] write_cache_pages+0x32c/0x530
[ 2702.281820] ? xfs_add_to_ioend+0x350/0x350 [xfs]
[ 2702.292350] xfs_vm_writepages+0x57/0x80 [xfs]
[ 2702.294048] do_writepages+0x1a/0x70
[ 2702.295068] __writeback_single_inode+0x59/0x800
[ 2702.296118] writeback_sb_inodes+0x282/0x550
[ 2702.297039] __writeback_inodes_wb+0x87/0xb0
[ 2702.298173] wb_writeback+0x430/0x5d0
[ 2702.299332] ? wb_workfn+0x448/0x740
[ 2702.300578] wb_workfn+0x448/0x740
[ 2702.301434] ? lock_acquire+0xab/0x200
[ 2702.305413] process_one_work+0x1ef/0x650
[ 2702.306687] worker_thread+0x4d/0x3e0
[ 2702.307671] kthread+0x106/0x140
[ 2702.308473] ? rescuer_thread+0x340/0x340
[ 2702.309442] ? kthread_delayed_work_timer_fn+0x90/0x90
[ 2702.310995] ret_from_fork+0x3a/0x50
[ 2702.312088] INFO: task fio:2618 blocked for more than 60 seconds.
[ 2702.313395] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.315139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.316820] fio D14224 2618 2612 0x00000000
[ 2702.318050] Call Trace:
[ 2702.318757] ? __schedule+0x3e4/0xa70
[ 2702.319639] ? rwsem_down_read_failed+0x7f/0x170
[ 2702.320798] schedule+0x40/0x90
[ 2702.321630] rwsem_down_read_failed+0x128/0x170
[ 2702.322752] ? current_time+0x18/0x70
[ 2702.323857] ? xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.325162] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.326423] call_rwsem_down_read_failed+0x14/0x30
[ 2702.328393] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.329539] down_read_nested+0x9d/0xa0
[ 2702.330452] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.331427] xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.332590] xfs_file_read_iter+0x9a/0xb0 [xfs]
[ 2702.333992] __vfs_read+0x136/0x1a0
[ 2702.335133] vfs_read+0xa3/0x150
[ 2702.336129] ksys_read+0x45/0xa0
[ 2702.337085] do_syscall_64+0x56/0x180
[ 2702.337985] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.339537] RIP: 0033:0x7ff4c152751d
[ 2702.340623] RSP: 002b:00007fffa13c93b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
[ 2702.342774] RAX: ffffffffffffffda RBX: 0000000000a0a2c0 RCX: 00007ff4c152751d
[ 2702.344269] RDX: 0000000000000400 RSI: 0000000000a17c00 RDI: 0000000000000005
[ 2702.345801] RBP: 00007ff4a6f57000 R08: 0800000000002000 R09: 0000000000000004
[ 2702.347342] R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000000000
[ 2702.348861] R13: 0000000000000400 R14: 0000000000a0a2e8 R15: 00007ff4a6f57000
[ 2702.351298] INFO: task fio:2619 blocked for more than 60 seconds.
[ 2702.353158] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.355103] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.357586] fio D14224 2619 2612 0x00000000
[ 2702.359181] Call Trace:
[ 2702.359815] ? __schedule+0x3e4/0xa70
[ 2702.360708] ? rwsem_down_read_failed+0x7f/0x170
[ 2702.361880] schedule+0x40/0x90
[ 2702.362727] rwsem_down_read_failed+0x128/0x170
[ 2702.363811] ? current_time+0x18/0x70
[ 2702.364775] ? xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.365994] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.367217] call_rwsem_down_read_failed+0x14/0x30
[ 2702.368411] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.369445] down_read_nested+0x9d/0xa0
[ 2702.370420] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.371454] xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.372665] xfs_file_read_iter+0x9a/0xb0 [xfs]
[ 2702.373780] __vfs_read+0x136/0x1a0
[ 2702.374708] vfs_read+0xa3/0x150
[ 2702.375521] ksys_read+0x45/0xa0
[ 2702.376318] do_syscall_64+0x56/0x180
[ 2702.377207] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.378839] RIP: 0033:0x7ff4c152751d
[ 2702.379625] RSP: 002b:00007fffa13c93b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
[ 2702.381190] RAX: ffffffffffffffda RBX: 0000000000a0a2c0 RCX: 00007ff4c152751d
[ 2702.382720] RDX: 0000000000000400 RSI: 0000000000a17c00 RDI: 0000000000000005
[ 2702.384575] RBP: 00007ff4a6f66b48 R08: 1000000000020000 R09: 0000000000000004
[ 2702.386233] R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000000000
[ 2702.387928] R13: 0000000000000400 R14: 0000000000a0a2e8 R15: 00007ff4a6f66b48
[ 2702.389643] INFO: task fio:2620 blocked for more than 60 seconds.
[ 2702.391114] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.393061] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.395659] fio D14224 2620 2612 0x00000000
[ 2702.397589] Call Trace:
[ 2702.398474] ? __schedule+0x3e4/0xa70
[ 2702.399445] ? rwsem_down_read_failed+0x7f/0x170
[ 2702.400590] schedule+0x40/0x90
[ 2702.401753] rwsem_down_read_failed+0x128/0x170
[ 2702.402902] ? current_time+0x18/0x70
[ 2702.403874] ? xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.405080] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.406597] call_rwsem_down_read_failed+0x14/0x30
[ 2702.407918] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.409035] down_read_nested+0x9d/0xa0
[ 2702.410284] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.411697] xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.413413] xfs_file_read_iter+0x9a/0xb0 [xfs]
[ 2702.414658] __vfs_read+0x136/0x1a0
[ 2702.415855] vfs_read+0xa3/0x150
[ 2702.416789] ksys_read+0x45/0xa0
[ 2702.417956] do_syscall_64+0x56/0x180
[ 2702.419108] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.420636] RIP: 0033:0x7ff4c152751d
[ 2702.421861] RSP: 002b:00007fffa13c93b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
[ 2702.424332] RAX: ffffffffffffffda RBX: 0000000000a0a2c0 RCX: 00007ff4c152751d
[ 2702.426572] RDX: 0000000000000400 RSI: 0000000000a17c00 RDI: 0000000000000005
[ 2702.428719] RBP: 00007ff4a6f76690 R08: 0001000000000000 R09: 0000000000000004
[ 2702.430587] R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000000000
[ 2702.432113] R13: 0000000000000400 R14: 0000000000a0a2e8 R15: 00007ff4a6f76690
[ 2702.433608] INFO: task fio:2621 blocked for more than 60 seconds.
[ 2702.434932] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.436202] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.437846] fio D14272 2621 2612 0x00000000
[ 2702.439057] Call Trace:
[ 2702.439633] ? __schedule+0x3e4/0xa70
[ 2702.440438] ? rwsem_down_read_failed+0x7f/0x170
[ 2702.441443] schedule+0x40/0x90
[ 2702.442149] rwsem_down_read_failed+0x128/0x170
[ 2702.443199] ? xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.444275] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.445315] call_rwsem_down_read_failed+0x14/0x30
[ 2702.446370] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.447300] down_read_nested+0x9d/0xa0
[ 2702.448172] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.449059] xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.450166] xfs_file_read_iter+0x9a/0xb0 [xfs]
[ 2702.451204] __vfs_read+0x136/0x1a0
[ 2702.451991] vfs_read+0xa3/0x150
[ 2702.452715] ksys_read+0x45/0xa0
[ 2702.453462] do_syscall_64+0x56/0x180
[ 2702.454277] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.455406] RIP: 0033:0x7ff4c152751d
[ 2702.456206] RSP: 002b:00007fffa13c93b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
[ 2702.457820] RAX: ffffffffffffffda RBX: 0000000000a0a2c0 RCX: 00007ff4c152751d
[ 2702.459361] RDX: 0000000000000400 RSI: 0000000000a17c00 RDI: 0000000000000005
[ 2702.460871] RBP: 00007ff4a6f861d8 R08: 0000000000800000 R09: 0000000000000004
[ 2702.462366] R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000000000
[ 2702.463863] R13: 0000000000000400 R14: 0000000000a0a2e8 R15: 00007ff4a6f861d8
[ 2702.465332] INFO: task fio:2622 blocked for more than 60 seconds.
[ 2702.466634] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.467880] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.469534] fio D14296 2622 2612 0x00000000
[ 2702.470742] Call Trace:
[ 2702.471312] ? __schedule+0x3e4/0xa70
[ 2702.472116] ? rwsem_down_read_failed+0x7f/0x170
[ 2702.473115] schedule+0x40/0x90
[ 2702.473831] rwsem_down_read_failed+0x128/0x170
[ 2702.474911] ? xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.476014] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.477085] call_rwsem_down_read_failed+0x14/0x30
[ 2702.478171] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.479114] down_read_nested+0x9d/0xa0
[ 2702.479999] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.481052] xfs_file_dio_aio_read+0x6d/0x1c0 [xfs]
[ 2702.482155] xfs_file_read_iter+0x9a/0xb0 [xfs]
[ 2702.483461] __vfs_read+0x136/0x1a0
[ 2702.484542] vfs_read+0xa3/0x150
[ 2702.485512] ksys_read+0x45/0xa0
[ 2702.486458] do_syscall_64+0x56/0x180
[ 2702.487597] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.489099] RIP: 0033:0x7ff4c152751d
[ 2702.490149] RSP: 002b:00007fffa13c93b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000000
[ 2702.492324] RAX: ffffffffffffffda RBX: 0000000000a0a2c0 RCX: 00007ff4c152751d
[ 2702.494580] RDX: 0000000000000400 RSI: 0000000000a17c00 RDI: 0000000000000005
[ 2702.496814] RBP: 00007ff4a6f95d20 R08: 0400000000000000 R09: 0000000000000004
[ 2702.498931] R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000000000
[ 2702.501035] R13: 0000000000000400 R14: 0000000000a0a2e8 R15: 00007ff4a6f95d20
[ 2702.503181] INFO: task fio:2623 blocked for more than 60 seconds.
[ 2702.504980] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.506658] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.508464] fio D14240 2623 2612 0x00000000
[ 2702.509927] Call Trace:
[ 2702.510802] ? __schedule+0x3e4/0xa70
[ 2702.511832] ? blk_flush_plug_list+0xe4/0x280
[ 2702.512872] schedule+0x40/0x90
[ 2702.513782] rwsem_down_read_failed+0x128/0x170
[ 2702.515267] ? xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.516814] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.518340] call_rwsem_down_read_failed+0x14/0x30
[ 2702.520179] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.521639] down_read_nested+0x9d/0xa0
[ 2702.522945] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.524196] xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.525682] xfs_file_write_iter+0x7b/0xb0 [xfs]
[ 2702.527109] aio_write+0x133/0x1c0
[ 2702.528170] ? lock_acquire+0xab/0x200
[ 2702.529282] ? __might_fault+0x36/0x80
[ 2702.530421] ? do_io_submit+0x41b/0x8d0
[ 2702.531617] do_io_submit+0x41b/0x8d0
[ 2702.532758] ? do_syscall_64+0x56/0x180
[ 2702.533950] ? do_io_submit+0x8d0/0x8d0
[ 2702.535053] do_syscall_64+0x56/0x180
[ 2702.536048] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.537236] RIP: 0033:0x7ff4c1c57697
[ 2702.538382] RSP: 002b:00007fffa13c9348 EFLAGS: 00000212 ORIG_RAX: 00000000000000d1
[ 2702.540538] RAX: ffffffffffffffda RBX: 0000000000a0a440 RCX: 00007ff4c1c57697
[ 2702.553411] RDX: 0000000000a08320 RSI: 0000000000000008 RDI: 00007ff4a4ef7000
[ 2702.556112] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000a097e0
[ 2702.559331] R10: 00000000000001f0 R11: 0000000000000212 R12: 00007ff4a6fa5868
[ 2702.562872] R13: 0000000000a0a480 R14: 0000000000000000 R15: 00007ff4a6fa5870
[ 2702.566224] INFO: task fio:2624 blocked for more than 60 seconds.
[ 2702.568916] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.571389] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.574938] fio D14112 2624 2612 0x00000000
[ 2702.577412] Call Trace:
[ 2702.578442] ? __schedule+0x3e4/0xa70
[ 2702.579995] ? blk_flush_plug_list+0xe4/0x280
[ 2702.581662] schedule+0x40/0x90
[ 2702.582905] rwsem_down_read_failed+0x128/0x170
[ 2702.584628] ? iomap_apply+0xd5/0x110
[ 2702.586113] ? xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.588344] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.590381] call_rwsem_down_read_failed+0x14/0x30
[ 2702.592192] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.593850] down_read_nested+0x9d/0xa0
[ 2702.595522] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.596803] xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.598362] xfs_file_write_iter+0x7b/0xb0 [xfs]
[ 2702.599758] aio_write+0x133/0x1c0
[ 2702.600699] ? lock_acquire+0xab/0x200
[ 2702.601902] ? __might_fault+0x36/0x80
[ 2702.603056] ? do_io_submit+0x41b/0x8d0
[ 2702.604191] do_io_submit+0x41b/0x8d0
[ 2702.605368] ? do_syscall_64+0x56/0x180
[ 2702.606499] ? do_io_submit+0x8d0/0x8d0
[ 2702.607643] do_syscall_64+0x56/0x180
[ 2702.608721] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.610164] RIP: 0033:0x7ff4c1c57697
[ 2702.611202] RSP: 002b:00007fffa13c9348 EFLAGS: 00000212 ORIG_RAX: 00000000000000d1
[ 2702.613435] RAX: ffffffffffffffda RBX: 0000000000a0a440 RCX: 00007ff4c1c57697
[ 2702.615344] RDX: 0000000000a08320 RSI: 0000000000000008 RDI: 00007ff4a4ef6000
[ 2702.617378] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000a097e0
[ 2702.619156] R10: 00000000000001f0 R11: 0000000000000212 R12: 00007ff4a6fb53b0
[ 2702.620699] R13: 0000000000a0a480 R14: 0000000000000000 R15: 00007ff4a6fb53b8
[ 2702.622672] INFO: task fio:2625 blocked for more than 60 seconds.
[ 2702.624119] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.625533] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.627422] fio D14072 2625 2612 0x00000000
[ 2702.628745] Call Trace:
[ 2702.629393] ? __schedule+0x3e4/0xa70
[ 2702.630308] ? blk_flush_plug_list+0xe4/0x280
[ 2702.631402] schedule+0x40/0x90
[ 2702.632191] rwsem_down_read_failed+0x128/0x170
[ 2702.633428] ? iomap_apply+0xd5/0x110
[ 2702.634418] ? xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.635707] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.636899] call_rwsem_down_read_failed+0x14/0x30
[ 2702.638269] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.639300] down_read_nested+0x9d/0xa0
[ 2702.640190] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.641091] xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.642385] xfs_file_write_iter+0x7b/0xb0 [xfs]
[ 2702.643624] aio_write+0x133/0x1c0
[ 2702.644550] ? lock_acquire+0xab/0x200
[ 2702.645443] ? __might_fault+0x36/0x80
[ 2702.646404] ? do_io_submit+0x41b/0x8d0
[ 2702.647924] do_io_submit+0x41b/0x8d0
[ 2702.649437] ? do_syscall_64+0x56/0x180
[ 2702.651040] ? do_io_submit+0x8d0/0x8d0
[ 2702.652597] do_syscall_64+0x56/0x180
[ 2702.654063] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.655804] RIP: 0033:0x7ff4c1c57697
[ 2702.657254] RSP: 002b:00007fffa13c9348 EFLAGS: 00000212 ORIG_RAX: 00000000000000d1
[ 2702.660132] RAX: ffffffffffffffda RBX: 0000000000a12600 RCX: 00007ff4c1c57697
[ 2702.662115] RDX: 0000000000a08320 RSI: 0000000000000008 RDI: 00007ff4a4ef5000
[ 2702.663694] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000a097e0
[ 2702.665239] R10: 00000000000001f0 R11: 0000000000000212 R12: 00007ff4a6fc4ef8
[ 2702.666850] R13: 0000000000a0a440 R14: 0000000000000000 R15: 00007ff4a6fc4f00
[ 2702.668419] INFO: task fio:2626 blocked for more than 60 seconds.
[ 2702.669747] Tainted: G W 4.17.0-rc4-djw #2
[ 2702.671300] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2702.673099] fio D13752 2626 2612 0x00000000
[ 2702.674841] Call Trace:
[ 2702.675719] ? __schedule+0x3e4/0xa70
[ 2702.676960] ? blk_flush_plug_list+0xe4/0x280
[ 2702.678387] schedule+0x40/0x90
[ 2702.679383] rwsem_down_read_failed+0x128/0x170
[ 2702.680667] ? iomap_apply+0xd5/0x110
[ 2702.681779] ? xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.683244] ? call_rwsem_down_read_failed+0x14/0x30
[ 2702.684683] call_rwsem_down_read_failed+0x14/0x30
[ 2702.686049] ? xfs_ilock+0x28f/0x330 [xfs]
[ 2702.687279] down_read_nested+0x9d/0xa0
[ 2702.688431] xfs_ilock+0x28f/0x330 [xfs]
[ 2702.689521] xfs_file_dio_aio_write+0xa8/0x470 [xfs]
[ 2702.690735] xfs_file_write_iter+0x7b/0xb0 [xfs]
[ 2702.691848] aio_write+0x133/0x1c0
[ 2702.692679] ? lock_acquire+0xab/0x200
[ 2702.693565] ? __might_fault+0x36/0x80
[ 2702.694557] ? do_io_submit+0x41b/0x8d0
[ 2702.695626] do_io_submit+0x41b/0x8d0
[ 2702.696461] ? do_syscall_64+0x56/0x180
[ 2702.697327] ? do_io_submit+0x8d0/0x8d0
[ 2702.698228] do_syscall_64+0x56/0x180
[ 2702.699109] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 2702.700224] RIP: 0033:0x7ff4c1c57697
[ 2702.701060] RSP: 002b:00007fffa13c9348 EFLAGS: 00000212 ORIG_RAX: 00000000000000d1
[ 2702.703147] RAX: ffffffffffffffda RBX: 0000000000a0a440 RCX: 00007ff4c1c57697
[ 2702.704913] RDX: 0000000000a08320 RSI: 0000000000000008 RDI: 00007ff4a4ef4000
[ 2702.706747] RBP: 0000000000000000 R08: 0000000000000008 R09: 0000000000a097e0
[ 2702.708506] R10: 00000000000001f0 R11: 0000000000000212 R12: 00007ff4a6fd4a40
[ 2702.710047] R13: 0000000000a0a480 R14: 0000000000000000 R15: 00007ff4a6fd4a48
[ 2702.711685] INFO: lockdep is turned off.
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next prev parent reply other threads:[~2018-05-10 15:13 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-09 7:47 stop using buffer heads in xfs and iomap Christoph Hellwig
2018-05-09 7:47 ` [PATCH 01/33] block: add a lower-level bio_add_page interface Christoph Hellwig
2018-05-09 15:12 ` Matthew Wilcox
2018-05-10 6:40 ` Christoph Hellwig
2018-05-10 21:49 ` Andreas Dilger
2018-05-11 6:29 ` Christoph Hellwig
2018-05-15 16:47 ` Jens Axboe
2018-05-10 8:52 ` Ming Lei
2018-05-11 6:24 ` Christoph Hellwig
2018-05-16 5:06 ` Ritesh Harjani
2018-05-16 18:05 ` Christoph Hellwig
2018-05-17 4:18 ` Ritesh Harjani
2018-05-09 7:47 ` [PATCH 02/33] fs: factor out a __generic_write_end helper Christoph Hellwig
2018-05-09 15:15 ` Matthew Wilcox
2018-05-10 6:40 ` Christoph Hellwig
2018-05-09 7:48 ` [PATCH 03/33] fs: move page_cache_seek_hole_data to iomap.c Christoph Hellwig
2018-05-09 7:48 ` [PATCH 04/33] fs: remove the buffer_unwritten check in page_seek_hole_data Christoph Hellwig
2018-05-17 11:33 ` Andreas Grünbacher
2018-05-09 7:48 ` [PATCH 05/33] fs: use ->is_partially_uptodate in page_cache_seek_hole_data Christoph Hellwig
2018-05-09 7:48 ` [PATCH 06/33] mm: give the 'ret' variable a better name __do_page_cache_readahead Christoph Hellwig
2018-05-09 15:45 ` Matthew Wilcox
2018-05-10 6:41 ` Christoph Hellwig
2018-05-09 7:48 ` [PATCH 07/33] mm: split ->readpages calls to avoid non-contiguous pages lists Christoph Hellwig
2018-05-09 15:46 ` Matthew Wilcox
2018-05-09 7:48 ` [PATCH 08/33] iomap: use __bio_add_page in iomap_dio_zero Christoph Hellwig
2018-05-09 7:48 ` [PATCH 09/33] iomap: add a iomap_sector helper Christoph Hellwig
2018-05-09 7:48 ` [PATCH 10/33] iomap: add an iomap-based bmap implementation Christoph Hellwig
2018-05-09 16:46 ` Darrick J. Wong
2018-05-10 6:42 ` Christoph Hellwig
2018-05-10 15:08 ` Darrick J. Wong
2018-05-11 6:25 ` Christoph Hellwig
2018-05-12 1:56 ` Darrick J. Wong
2018-05-09 7:48 ` [PATCH 11/33] iomap: add an iomap-based readpage and readpages implementation Christoph Hellwig
2018-05-10 1:17 ` Dave Chinner
2018-05-10 6:44 ` Christoph Hellwig
2018-05-09 7:48 ` [PATCH 12/33] xfs: use iomap_bmap Christoph Hellwig
2018-05-09 7:48 ` [PATCH 13/33] xfs: use iomap for blocksize == PAGE_SIZE readpage and readpages Christoph Hellwig
2018-05-09 7:48 ` [PATCH 14/33] xfs: simplify xfs_bmap_punch_delalloc_range Christoph Hellwig
2018-05-09 7:48 ` [PATCH 15/33] xfs: simplify xfs_aops_discard_page Christoph Hellwig
2018-05-09 7:48 ` [PATCH 16/33] xfs: move locking into xfs_bmap_punch_delalloc_range Christoph Hellwig
2018-05-09 7:48 ` [PATCH 17/33] xfs: make xfs_writepage_map extent map centric Christoph Hellwig
2018-05-09 7:48 ` [PATCH 18/33] xfs: remove the now unused XFS_BMAPI_IGSTATE flag Christoph Hellwig
2018-05-09 7:48 ` [PATCH 19/33] xfs: remove xfs_reflink_find_cow_mapping Christoph Hellwig
2018-05-09 7:48 ` [PATCH 20/33] xfs: remove xfs_reflink_trim_irec_to_next_cow Christoph Hellwig
2018-05-09 7:48 ` [PATCH 21/33] xfs: simplify xfs_map_blocks by using xfs_iext_lookup_extent directly Christoph Hellwig
2018-05-09 7:48 ` [PATCH 22/33] xfs: don't clear imap_valid for a non-uptodate buffers Christoph Hellwig
2018-05-09 7:48 ` [PATCH 23/33] xfs: remove the imap_valid flag Christoph Hellwig
2018-05-09 7:48 ` [PATCH 24/33] xfs: don't look at buffer heads in xfs_add_to_ioend Christoph Hellwig
2018-05-09 7:48 ` [PATCH 25/33] xfs: move all writeback buffer_head manipulation into xfs_map_at_offset Christoph Hellwig
2018-05-09 7:48 ` [PATCH 26/33] xfs: allow writeback on pages without buffer heads Christoph Hellwig
2018-05-09 7:48 ` [PATCH 27/33] xfs: remove xfs_start_page_writeback Christoph Hellwig
2018-05-09 7:48 ` [PATCH 28/33] xfs: refactor the tail of xfs_writepage_map Christoph Hellwig
2018-05-09 7:48 ` [PATCH 29/33] xfs: do not set the page uptodate in xfs_writepage_map Christoph Hellwig
2018-05-09 7:48 ` [PATCH 30/33] iomap: add initial support for writes without buffer heads Christoph Hellwig
2018-05-09 7:48 ` [PATCH 31/33] iomap: add support for sub-pagesize buffered I/O " Christoph Hellwig
2018-05-14 16:00 ` Goldwyn Rodrigues
2018-05-15 7:26 ` Christoph Hellwig
2018-05-15 13:47 ` Goldwyn Rodrigues
2018-05-16 5:46 ` Dave Chinner
2018-05-09 7:48 ` [PATCH 32/33] xfs: add support for sub-pagesize writeback without buffer_heads Christoph Hellwig
2018-05-09 7:48 ` [PATCH 33/33] fs: remove __block_write_begin and iomap_to_bh Christoph Hellwig
2018-05-10 15:13 ` Darrick J. Wong [this message]
2018-05-11 6:22 ` stop using buffer heads in xfs and iomap Christoph Hellwig
2018-05-11 6:39 ` Darrick J. Wong
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