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Date: Mon, 5 Sep 2022 10:00:29 +0200
From: Corentin Labbe <clabbe.montjoie@...il.com>
To: anton@...era.com, linux-ntfs-dev@...ts.sourceforge.net,
akpm@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk,
linux-fsdevel@...r.kernel.org
Subject: WARNING: inconsistent lock state when doing fdisk -l
Hello
On a jetson-tk1 I got today:
[ 39.582103] ================================
[ 39.586361] WARNING: inconsistent lock state
[ 39.590618] 6.0.0-rc3-next-20220901-00130-gb6b3fb681f34-dirty #8 Not tainted
[ 39.597649] --------------------------------
[ 39.601907] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-R} usage.
[ 39.607897] rngd/218 [HC0[0]:SC1[1]:HE0:SE0] takes:
[ 39.612763] c284dba4 (&inode->i_size_seqcount){+.+-}-{0:0}, at: end_bio_bh_io_sync+0x30/0x4c
[ 39.621198] {SOFTIRQ-ON-W} state was registered at:
[ 39.626061] simple_write_end+0x1e8/0x2a4
[ 39.630154] page_symlink+0xb0/0x158
[ 39.633808] ramfs_symlink+0x50/0xcc
[ 39.637466] vfs_symlink+0x80/0xf0
[ 39.640944] init_symlink+0x54/0x88
[ 39.644512] do_symlink+0x54/0x88
[ 39.647905] write_buffer+0x28/0x3c
[ 39.651470] flush_buffer+0x40/0x98
[ 39.655035] __gunzip+0x2c4/0x35c
[ 39.658427] gunzip+0x2c/0x34
[ 39.661470] unpack_to_rootfs+0x18c/0x2b4
[ 39.665556] do_populate_rootfs+0x78/0x1cc
[ 39.669728] async_run_entry_fn+0x24/0xb0
[ 39.673817] process_one_work+0x288/0x774
[ 39.677904] worker_thread+0x54/0x51c
[ 39.681643] kthread+0xf8/0x12c
[ 39.684862] ret_from_fork+0x14/0x2c
[ 39.688513] 0x0
[ 39.690430] irq event stamp: 19119
[ 39.693820] hardirqs last enabled at (19118): [<c010145c>] __do_softirq+0xdc/0x598
[ 39.701460] hardirqs last disabled at (19119): [<c0d0afb0>] _raw_read_lock_irqsave+0x84/0x88
[ 39.709883] softirqs last enabled at (19108): [<c01016b4>] __do_softirq+0x334/0x598
[ 39.717609] softirqs last disabled at (19117): [<c012bdb0>] __irq_exit_rcu+0x124/0x1a8
[ 39.725511]
[ 39.725511] other info that might help us debug this:
[ 39.732021] Possible unsafe locking scenario:
[ 39.732021]
[ 39.737924] CPU0
[ 39.740360] ----
[ 39.742796] lock(&inode->i_size_seqcount);
[ 39.747056] <Interrupt>
[ 39.749665] lock(&inode->i_size_seqcount);
[ 39.754098]
[ 39.754098] *** DEADLOCK ***
[ 39.754098]
[ 39.760001] 1 lock held by rngd/218:
[ 39.763566] #0: c284d950 (&ni->size_lock){...-}-{2:2}, at: ntfs_end_buffer_async_read+0x68/0x458
[ 39.772432]
[ 39.772432] stack backtrace:
[ 39.776777] CPU: 0 PID: 218 Comm: rngd Not tainted 6.0.0-rc3-next-20220901-00130-gb6b3fb681f34-dirty #8
[ 39.786149] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree)
[ 39.792401] unwind_backtrace from show_stack+0x10/0x14
[ 39.797618] show_stack from dump_stack_lvl+0x58/0x70
[ 39.802660] dump_stack_lvl from mark_lock.part.0+0xb80/0x1298
[ 39.808482] mark_lock.part.0 from __lock_acquire+0xa70/0x29fc
[ 39.814304] __lock_acquire from lock_acquire+0x11c/0x3c8
[ 39.819691] lock_acquire from ntfs_end_buffer_async_read+0xac/0x458
[ 39.826033] ntfs_end_buffer_async_read from end_bio_bh_io_sync+0x30/0x4c
[ 39.832809] end_bio_bh_io_sync from blk_update_request+0x158/0x57c
[ 39.839064] blk_update_request from scsi_end_request+0x1c/0x3d4
[ 39.845059] scsi_end_request from scsi_io_completion+0x38/0x688
[ 39.851053] scsi_io_completion from blk_complete_reqs+0x54/0x60
[ 39.857047] blk_complete_reqs from __do_softirq+0x134/0x598
[ 39.862694] __do_softirq from __irq_exit_rcu+0x124/0x1a8
[ 39.868083] __irq_exit_rcu from irq_exit+0x8/0x28
[ 39.872866] irq_exit from call_with_stack+0x18/0x20
[ 39.877824] call_with_stack from __irq_usr+0x7c/0xa0
[ 39.882868] Exception stack(0xf0c69fb0 to 0xf0c69ff8)
[ 39.887906] 9fa0: 553c47b7 41bd9715 553c47b7 b6b5e9d8
[ 39.896065] 9fc0: b6b5ea40 00000000 00000000 b62046a0 0000000a b635f000 beefcbf4 b6b5e924
[ 39.904223] 9fe0: 0000001d b6b5e910 b6f448ec b6f44900 80000010 ffffffff
The command leading to this is a simple fdisk -l
It is not clear to me if the problem came from NTFS or ramfs.
The full output is:
fdisk -l
Disk /dev/ram0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram1: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram2: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram3: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram4: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram5: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram6: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram7: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram8: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram9: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram10: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram11: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram12: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512[ 39.577565]
[ 39.582103] ================================
[ 39.586361] WARNING: inconsistent lock state
[ 39.590618] 6.0.0-rc3-next-20220901-00130-gb6b3fb681f34-dirty #8 Not tainted
[ 39.597649] --------------------------------
[ 39.601907] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-R} usage.
[ 39.607897] rngd/218 [HC0[0]:SC1[1]:HE0:SE0] takes:
[ 39.612763] c284dba4 (&inode->i_size_seqcount){+.+-}-{0:0}, at: end_bio_bh_io_sync+0x30/0x4c
[ 39.621198] {SOFTIRQ-ON-W} state was registered at:
[ 39.626061] simple_write_end+0x1e8/0x2a4
[ 39.630154] page_symlink+0xb0/0x158
[ 39.633808] ramfs_symlink+0x50/0xcc
[ 39.637466] vfs_symlink+0x80/0xf0
[ 39.640944] init_symlink+0x54/0x88
[ 39.644512] do_symlink+0x54/0x88
[ 39.647905] write_buffer+0x28/0x3c
[ 39.651470] flush_buffer+0x40/0x98
[ 39.655035] __gunzip+0x2c4/0x35c
[ 39.658427] gunzip+0x2c/0x34
[ 39.661470] unpack_to_rootfs+0x18c/0x2b4
[ 39.665556] do_populate_rootfs+0x78/0x1cc
[ 39.669728] async_run_entry_fn+0x24/0xb0
[ 39.673817] process_one_work+0x288/0x774
[ 39.677904] worker_thread+0x54/0x51c
[ 39.681643] kthread+0xf8/0x12c
[ 39.684862] ret_from_fork+0x14/0x2c
[ 39.688513] 0x0
[ 39.690430] irq event stamp: 19119
[ 39.693820] hardirqs last enabled at (19118): [<c010145c>] __do_softirq+0xdc/0x598
[ 39.701460] hardirqs last disabled at (19119): [<c0d0afb0>] _raw_read_lock_irqsave+0x84/0x88
[ 39.709883] softirqs last enabled at (19108): [<c01016b4>] __do_softirq+0x334/0x598
[ 39.717609] softirqs last disabled at (19117): [<c012bdb0>] __irq_exit_rcu+0x124/0x1a8
[ 39.725511]
[ 39.725511] other info that might help us debug this:
[ 39.732021] Possible unsafe locking scenario:
[ 39.732021]
[ 39.737924] CPU0
[ 39.740360] ----
[ 39.742796] lock(&inode->i_size_seqcount);
[ 39.747056] <Interrupt>
[ 39.749665] lock(&inode->i_size_seqcount);
[ 39.754098]
[ 39.754098] *** DEADLOCK ***
[ 39.754098]
[ 39.760001] 1 lock held by rngd/218:
[ 39.763566] #0: c284d950 (&ni->size_lock){...-}-{2:2}, at: ntfs_end_buffer_async_read+0x68/0x458
[ 39.772432]
[ 39.772432] stack backtrace:
[ 39.776777] CPU: 0 PID: 218 Comm: rngd Not tainted 6.0.0-rc3-next-20220901-00130-gb6b3fb681f34-dirty #8
[ 39.786149] Hardware name: NVIDIA Tegra SoC (Flattened Device Tree)
[ 39.792401] unwind_backtrace from show_stack+0x10/0x14
[ 39.797618] show_stack from dump_stack_lvl+0x58/0x70
[ 39.802660] dump_stack_lvl from mark_lock.part.0+0xb80/0x1298
[ 39.808482] mark_lock.part.0 from __lock_acquire+0xa70/0x29fc
[ 39.814304] __lock_acquire from lock_acquire+0x11c/0x3c8
[ 39.819691] lock_acquire from ntfs_end_buffer_async_read+0xac/0x458
[ 39.826033] ntfs_end_buffer_async_read from end_bio_bh_io_sync+0x30/0x4c
[ 39.832809] end_bio_bh_io_sync from blk_update_request+0x158/0x57c
[ 39.839064] blk_update_request from scsi_end_request+0x1c/0x3d4
[ 39.845059] scsi_end_request from scsi_io_completion+0x38/0x688
[ 39.851053] scsi_io_completion from blk_complete_reqs+0x54/0x60
[ 39.857047] blk_complete_reqs from __do_softirq+0x134/0x598
[ 39.862694] __do_softirq from __irq_exit_rcu+0x124/0x1a8
[ 39.868083] __irq_exit_rcu from irq_exit+0x8/0x28
[ 39.872866] irq_exit from call_with_stack+0x18/0x20
[ 39.877824] call_with_stack from __irq_usr+0x7c/0xa0
[ 39.882868] Exception stack(0xf0c69fb0 to 0xf0c69ff8)
[ 39.887906] 9fa0: 553c47b7 41bd9715 553c47b7 b6b5e9d8
[ 39.896065] 9fc0: b6b5ea40 00000000 00000000 b62046a0 0000000a b635f000 beefcbf4 b6b5e924
[ 39.904223] 9fe0: 0000001d b6b5e910 b6f448ec b6f44900 80000010 ffffffff
= 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram13: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram14: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optima[ 39.951621] ntfs: volume version 3.1.
l): 4096 bytes / 4096 bytes
Disk /dev/ram15: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mmcblk1: 14.68 GiB, 15758000128 bytes, 30777344 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 00F7EF05-A1E9-E53A-CA0B-CBD0484764BD
Device Start End Sectors Size Type
/dev/mmcblk1p1 49152 29908991 29859840 14.2G Linux filesystem
/dev/mmcblk1p2 29908992 29917183 8192 4M Microsoft basic data
/dev/mmcblk1p3 29917184 30048255 131072 64M Microsoft basic data
/dev/mmcblk1p4 30048256 30056447 8192 4M Microsoft basic data
/dev/mmcblk1p5 30056448 30064639 8192 4M Microsoft basic data
/dev/mmcblk1p6 30064640 30072831 8192 4M Microsoft basic data
/dev/mmcblk1p7 30072832 30081023 8192 4M Microsoft basic data
/dev/mmcblk1p8 30081024 30773247 692224 338M Microsoft basic data
Disk /dev/mmcblk1boot0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mmcblk1boot1: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sda: 149.05 GiB, 160041885696 bytes, 312581808 sectors
Disk model: WDC WD1600BEVS-6
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x40aa40aa
Device Boot Start End Sectors Size Id Type
/dev/sda1 * 63 296929394 296929332 141.6G 7 HPFS/NTFS/exFAT
/dev/sda2 296929395 312576704 15647310 7.5G 7 HPFS/NTFS/exFAT
Regards
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