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Message-ID: <ae6217b4-7b62-4722-9afe-f8379201cc9e@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2024 19:34:18 +0530
From: Venkat Rao Bagalkote <venkat88@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org, hch@....de,
brauner@...nel.org, sfr@...b.auug.org.au
Subject: [linux-next][20241004]BUG: KFENCE: memory corruption in
xfs_iext_remove+0x288/0x2c8 [xfs]
Greetings!!!
Observing Kfence errors, while running fsstress test on Power PC platform
[ 6726.655519]
==================================================================
[ 6726.655540] BUG: KFENCE: memory corruption in
xfs_iext_remove+0x288/0x2c8 [xfs]
[ 6726.655540]
[ 6726.655746] Corrupted memory at 0x00000000b8747239 [ ! ! ! ! ! ! ! !
! ! ! ! ! ! ! ! ] (in kfence-#97):
[ 6726.655789] xfs_iext_remove+0x288/0x2c8 [xfs]
[ 6726.655970] xfs_bmap_del_extent_real+0x34c/0x8ec [xfs]
[ 6726.656159] __xfs_bunmapi+0x538/0xb28 [xfs]
[ 6726.656352] xfs_bunmapi_range+0xbc/0x138 [xfs]
[ 6726.656548] xfs_itruncate_extents_flags+0x1bc/0x2f0 [xfs]
[ 6726.656748] xfs_inactive_truncate+0xec/0x134 [xfs]
[ 6726.656890] xfs_inactive+0x2fc/0x41c [xfs]
[ 6726.657019] xfs_inodegc_worker+0x134/0x240 [xfs]
[ 6726.657129] process_one_work+0x1fc/0x4dc
[ 6726.657136] worker_thread+0x340/0x504
[ 6726.657142] kthread+0x138/0x140
[ 6726.657147] start_kernel_thread+0x14/0x18
[ 6726.657152]
[ 6726.657155] kfence-#97: 0x000000001b23b51e-0x0000000088873dcf,
size=208, cache=kmalloc-256
[ 6726.657155]
[ 6726.657162] allocated by task 187091 on cpu 4 at 6323.430277s
(403.226884s ago):
[ 6726.657170] krealloc_noprof+0x18c/0x38c
[ 6726.657176] xfs_iext_insert_raw+0x3c8/0x434 [xfs]
[ 6726.657265] xfs_iext_insert+0x58/0xec [xfs]
[ 6726.657354] xfs_bmap_add_extent_hole_delay.constprop.0+0x130/0x4c8 [xfs]
[ 6726.657439] xfs_bmapi_reserve_delalloc+0x234/0x4c8 [xfs]
[ 6726.657525] xfs_buffered_write_iomap_begin+0x490/0x9e4 [xfs]
[ 6726.657619] iomap_iter+0xf0/0x188
[ 6726.657624] iomap_file_buffered_write+0xbc/0x11c
[ 6726.657629] xfs_file_buffered_write+0xbc/0x388 [xfs]
[ 6726.657722] vfs_write+0x38c/0x488
[ 6726.657727] ksys_write+0x84/0x140
[ 6726.657732] system_call_exception+0x138/0x330
[ 6726.657738] system_call_vectored_common+0x15c/0x2ec
[ 6726.657745]
[ 6726.657747] freed by task 192236 on cpu 0 at 6726.655507s (0.002239s
ago):
[ 6726.657755] xfs_iext_remove+0x288/0x2c8 [xfs]
[ 6726.657844] xfs_bmap_del_extent_real+0x34c/0x8ec [xfs]
[ 6726.657929] __xfs_bunmapi+0x538/0xb28 [xfs]
[ 6726.658013] xfs_bunmapi_range+0xbc/0x138 [xfs]
[ 6726.658097] xfs_itruncate_extents_flags+0x1bc/0x2f0 [xfs]
[ 6726.658187] xfs_inactive_truncate+0xec/0x134 [xfs]
[ 6726.658278] xfs_inactive+0x2fc/0x41c [xfs]
[ 6726.658368] xfs_inodegc_worker+0x134/0x240 [xfs]
[ 6726.658458] process_one_work+0x1fc/0x4dc
[ 6726.658464] worker_thread+0x340/0x504
[ 6726.658470] kthread+0x138/0x140
[ 6726.658475] start_kernel_thread+0x14/0x18
[ 6726.658479]
[ 6726.658483] CPU: 0 UID: 0 PID: 192236 Comm: kworker/0:2 Kdump: loaded
Tainted: G B 6.12.0-rc1-next-20241004-auto #1
[ 6726.658492] Tainted: [B]=BAD_PAGE
[ 6726.658495] Hardware name: IBM,9009-42A POWER9 (architected) 0x4e0202
0xf000005 of:IBM,FW950.A0 (VL950_141) hv:phyp pSeries
[ 6726.658501] Workqueue: xfs-inodegc/sda3 xfs_inodegc_worker [xfs]
[ 6726.658593]
==================================================================
Regards,
Venkat.
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