bisecting cause commit starting from 7fe10096c1508c7f033d34d0741809f8eecc1ed4 building syzkaller on 409809d8a7c9c775eaea317add40e7a86a1e836c testing commit 7fe10096c1508c7f033d34d0741809f8eecc1ed4 with gcc (GCC) 8.1.0 kernel signature: 8b0685e63080befc35af399f7986162dd202a1a502facff0f0c75c398f824040 run #0: crashed: INFO: task hung in lock_mount run #1: crashed: INFO: task hung in lock_mount run #2: OK run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK testing release v5.8 testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c with gcc (GCC) 8.1.0 kernel signature: ea39a083f9d2511f4e7723d147626b4fa6610293958001557f269e3985c9fb9f all runs: OK # git bisect start 7fe10096c1508c7f033d34d0741809f8eecc1ed4 bcf876870b95592b52519ed4aafcf9d95999bc9c Bisecting: 6648 revisions left to test after this (roughly 13 steps) [47ec5303d73ea344e84f46660fff693c57641386] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next testing commit 47ec5303d73ea344e84f46660fff693c57641386 with gcc (GCC) 8.1.0 kernel signature: 6fb5360e7bf1b667972fece7b8ae7c4b2c8391109056d7fa780e6aad414e6bf9 run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in vfs_setxattr run #2: crashed: INFO: task hung in lock_mount run #3: crashed: INFO: task hung in vfs_setxattr run #4: crashed: INFO: task hung in vfs_setxattr run #5: crashed: INFO: task hung in vfs_setxattr run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 47ec5303d73ea344e84f46660fff693c57641386 Bisecting: 4088 revisions left to test after this (roughly 12 steps) [8f7be6291529011a58856bf178f52ed5751c68ac] Merge tag 'mmc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc testing commit 8f7be6291529011a58856bf178f52ed5751c68ac with gcc (GCC) 8.1.0 kernel signature: 2e83fc6e141187b84bd4c0844ed4f6fc0f1262b1e5e2ae2f4018230f372cc769 run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in lock_mount run #2: crashed: INFO: task hung in vfs_setxattr run #3: crashed: INFO: task hung in lock_mount run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 8f7be6291529011a58856bf178f52ed5751c68ac Bisecting: 2031 revisions left to test after this (roughly 11 steps) [822ef14e9dc73079c646d33aa77e2ac42361b39e] Merge tag 'arm-drivers-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc testing commit 822ef14e9dc73079c646d33aa77e2ac42361b39e with gcc (GCC) 8.1.0 kernel signature: 280107774ce1d9921a2804bddc3f071204a660afc9d14527b3040a48af659123 run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in lock_mount run #2: crashed: INFO: task hung in vfs_setxattr run #3: crashed: INFO: task hung in lock_mount run #4: crashed: INFO: task hung in lock_mount run #5: crashed: INFO: task hung in lock_mount run #6: crashed: INFO: task hung in vfs_setxattr run #7: crashed: INFO: task hung in vfs_setxattr run #8: crashed: INFO: task hung in vfs_setxattr run #9: OK # git bisect bad 822ef14e9dc73079c646d33aa77e2ac42361b39e Bisecting: 1032 revisions left to test after this (roughly 10 steps) [e4cbce4d131753eca271d9d67f58c6377f27ad21] Merge tag 'sched-core-2020-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip testing commit e4cbce4d131753eca271d9d67f58c6377f27ad21 with gcc (GCC) 8.1.0 kernel signature: 540f8c4a1bd82777135dfafdb56875b5d17c5c331add5243c1ab739bc6a4be78 run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in lock_mount run #2: crashed: INFO: task hung in lock_mount run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: crashed: INFO: task hung in vfs_setxattr # git bisect bad e4cbce4d131753eca271d9d67f58c6377f27ad21 Bisecting: 590 revisions left to test after this (roughly 9 steps) [382625d0d4325fb14a29444eb8dce8dcc2eb9b51] Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block testing commit 382625d0d4325fb14a29444eb8dce8dcc2eb9b51 with gcc (GCC) 8.1.0 kernel signature: 565b67fcd54775214ddf028bf5be4abf81bc305ff09f797faddfb8de320e512a run #0: crashed: INFO: task hung in lock_mount run #1: crashed: INFO: task hung in lock_mount run #2: crashed: INFO: task hung in vfs_setxattr run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 382625d0d4325fb14a29444eb8dce8dcc2eb9b51 Bisecting: 299 revisions left to test after this (roughly 8 steps) [5577416c39652d395a6045677f4f598564aba1cf] Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt testing commit 5577416c39652d395a6045677f4f598564aba1cf with gcc (GCC) 8.1.0 kernel signature: 941f6d92d5b5f3c6116d7f65909be13b28a961b16381a3f89691fc078f5134ec run #0: crashed: INFO: task hung in lock_mount run #1: crashed: INFO: task hung in vfs_setxattr run #2: crashed: INFO: task hung in vfs_setxattr run #3: crashed: INFO: task hung in lock_mount run #4: crashed: INFO: task hung in lock_mount run #5: crashed: INFO: task hung in vfs_setxattr run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 5577416c39652d395a6045677f4f598564aba1cf Bisecting: 87 revisions left to test after this (roughly 7 steps) [86d52921a2ba51a78e5bfb71c75aedcbd9e61a5c] btrfs: make btrfs_delalloc_release_space take btrfs_inode testing commit 86d52921a2ba51a78e5bfb71c75aedcbd9e61a5c with gcc (GCC) 8.1.0 kernel signature: e8e79fed270af668ee0526cbd9d26e02d93b3ae3e0476339aa8b577be1fc048a run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in lock_mount run #2: crashed: INFO: task hung in lock_mount run #3: crashed: INFO: task hung in vfs_setxattr run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 86d52921a2ba51a78e5bfb71c75aedcbd9e61a5c Bisecting: 43 revisions left to test after this (roughly 6 steps) [bab16e21e8bbd644067289cfa328f8a67f3e333d] btrfs: don't use UAPI types for fiemap callback testing commit bab16e21e8bbd644067289cfa328f8a67f3e333d with gcc (GCC) 8.1.0 kernel signature: 081c40c466093acb6557518170a27415408f0b8c5798b08857809217dbea03c8 run #0: crashed: INFO: task hung in lock_mount run #1: crashed: INFO: task hung in vfs_setxattr run #2: crashed: INFO: task hung in vfs_setxattr run #3: crashed: INFO: task hung in vfs_setxattr run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad bab16e21e8bbd644067289cfa328f8a67f3e333d Bisecting: 21 revisions left to test after this (roughly 5 steps) [100aa5d9f9f9d1163218bbbaad21bffbd8ee3e8d] btrfs: scrub: clean up temporary page variables in scrub_checksum_tree_block testing commit 100aa5d9f9f9d1163218bbbaad21bffbd8ee3e8d with gcc (GCC) 8.1.0 kernel signature: 8dcfa5d786fec46acf3d6edc10705757b2ef07b7ec58f7a69e284663b4be220c run #0: crashed: INFO: task hung in lock_mount run #1: crashed: INFO: task hung in lock_mount run #2: crashed: INFO: task hung in lock_mount run #3: crashed: INFO: task hung in vfs_setxattr run #4: crashed: INFO: task hung in vfs_setxattr run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: can't ssh into the instance # git bisect bad 100aa5d9f9f9d1163218bbbaad21bffbd8ee3e8d Bisecting: 10 revisions left to test after this (roughly 3 steps) [46d4dac888ebe083d61f18acb16a6988e9062268] btrfs: remove the start argument from btrfs_free_reserved_data_space_noquota() testing commit 46d4dac888ebe083d61f18acb16a6988e9062268 with gcc (GCC) 8.1.0 kernel signature: bf1503e7d7bdf73e8767eabe49f43bdf12105070b7f17c71c036873e6666bac8 run #0: crashed: INFO: task hung in lock_mount run #1: crashed: INFO: task hung in vfs_setxattr run #2: crashed: INFO: task hung in vfs_setxattr run #3: crashed: INFO: task hung in lock_mount run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 46d4dac888ebe083d61f18acb16a6988e9062268 Bisecting: 4 revisions left to test after this (roughly 2 steps) [e3ba67a108ff5a2657990014d3ed4488bd665be6] btrfs: factor out reading of bg from find_frist_block_group testing commit e3ba67a108ff5a2657990014d3ed4488bd665be6 with gcc (GCC) 8.1.0 kernel signature: 4f86e26ef22e83572dac86b4156dd9f1900a9e420be3f0a0a542814b33501394 run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in vfs_setxattr run #2: crashed: INFO: task hung in vfs_setxattr run #3: OK run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: boot failed: can't ssh into the instance # git bisect bad e3ba67a108ff5a2657990014d3ed4488bd665be6 Bisecting: 2 revisions left to test after this (roughly 1 step) [9e22b925985e71c6acf0dba03f9b99a56806a137] btrfs: read stripe len directly in btrfs_rmap_block testing commit 9e22b925985e71c6acf0dba03f9b99a56806a137 with gcc (GCC) 8.1.0 kernel signature: b2bf27a599f2b8958a5490d9b184ff1d643e11f183c335b062daf333689a65b2 run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in vfs_setxattr run #2: crashed: INFO: task hung in lock_mount run #3: crashed: INFO: task hung in vfs_setxattr run #4: OK run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 9e22b925985e71c6acf0dba03f9b99a56806a137 Bisecting: 0 revisions left to test after this (roughly 0 steps) [6a3c7f5c87854e948c3c234e5f5e745c7c553722] btrfs: don't balance btree inode pages from buffered write path testing commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722 with gcc (GCC) 8.1.0 kernel signature: 8b741f33183fdeb4d039ef754b7f66ee03c2345c00e800074092661547075c3a run #0: crashed: INFO: task hung in vfs_setxattr run #1: crashed: INFO: task hung in vfs_setxattr run #2: crashed: INFO: task hung in vfs_setxattr run #3: crashed: INFO: task hung in lock_mount run #4: crashed: INFO: task hung in vfs_setxattr run #5: OK run #6: OK run #7: OK run #8: OK run #9: OK # git bisect bad 6a3c7f5c87854e948c3c234e5f5e745c7c553722 6a3c7f5c87854e948c3c234e5f5e745c7c553722 is the first bad commit commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722 Author: Nikolay Borisov Date: Thu May 28 11:05:13 2020 +0300 btrfs: don't balance btree inode pages from buffered write path The call to btrfs_btree_balance_dirty has been there since the early days of BTRFS, when the btree was directly modified from the write path, hence dirtied btree inode pages. With the implementation of b888db2bd7b6 ("Btrfs: Add delayed allocation to the extent based page tree code") 13 years ago the btree is no longer modified from the write path, hence there is no point in calling this function. Just remove it. Signed-off-by: Nikolay Borisov Signed-off-by: David Sterba fs/btrfs/file.c | 2 -- 1 file changed, 2 deletions(-) parent commit 92ed301919932f777713b9172e525674157e983d wasn't tested testing commit 92ed301919932f777713b9172e525674157e983d with gcc (GCC) 8.1.0 kernel signature: d5da7fc6e98ff42f941ff1cf8a0775cd7ba63c428fa4116423467d286ccaf278 culprit signature: 8b741f33183fdeb4d039ef754b7f66ee03c2345c00e800074092661547075c3a parent signature: d5da7fc6e98ff42f941ff1cf8a0775cd7ba63c428fa4116423467d286ccaf278 revisions tested: 15, total time: 3h46m44.75961466s (build: 1h19m28.370946539s, test: 2h25m52.987903263s) first bad commit: 6a3c7f5c87854e948c3c234e5f5e745c7c553722 btrfs: don't balance btree inode pages from buffered write path recipients (to): ["clm@fb.com" "dsterba@suse.com" "dsterba@suse.com" "josef@toxicpanda.com" "linux-btrfs@vger.kernel.org" "nborisov@suse.com"] recipients (cc): ["linux-kernel@vger.kernel.org"] crash: INFO: task hung in vfs_setxattr INFO: task syz-executor.1:5441 blocked for more than 143 seconds. Not tainted 5.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D14328 5441 7183 0x00000000 Call Trace: context_switch kernel/sched/core.c:3458 [inline] __schedule+0x3fc/0x870 kernel/sched/core.c:4219 schedule+0x37/0xe0 kernel/sched/core.c:4294 rwsem_down_write_slowpath+0x373/0x680 kernel/locking/rwsem.c:1235 inode_lock include/linux/fs.h:800 [inline] vfs_setxattr+0x50/0xa0 fs/xattr.c:219 setxattr+0x136/0x1c0 fs/xattr.c:451 path_setxattr+0xb9/0xd0 fs/xattr.c:470 __do_sys_setxattr fs/xattr.c:485 [inline] __se_sys_setxattr fs/xattr.c:481 [inline] __x64_sys_setxattr+0x22/0x30 fs/xattr.c:481 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: Bad RIP value. RSP: 002b:00007fccbff5dc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00000000000324c0 RCX: 000000000045d5b9 RDX: 0000000000000000 RSI: 0000000020000100 RDI: 00000000200000c0 RBP: 000000000118d0d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118d08c R13: 00007ffdc1ec4f5f R14: 00007fccbff5e9c0 R15: 000000000118d08c Showing all locks held in the system: 1 lock held by khungtaskd/524: #0: ffffffff842e0540 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x15/0x17a kernel/locking/lockdep.c:5780 2 locks held by kworker/1:41/2643: #0: ffff88812bc26338 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #0: ffff88812bc26338 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff88812bc26338 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x1de/0x5f0 kernel/workqueue.c:2240 #1: ffffc90005763e70 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:615 [inline] #1: ffffc90005763e70 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #1: ffffc90005763e70 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x1de/0x5f0 kernel/workqueue.c:2240 1 lock held by in:imklog/6602: #0: ffff88812a72d2f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x45/0x50 fs/file.c:826 1 lock held by syz-executor.2/7180: #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline] #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x118/0x430 kernel/rcu/tree_exp.h:838 1 lock held by syz-executor.0/7187: #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #0: ffffffff842e1e60 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x35f/0x430 kernel/rcu/tree_exp.h:838 2 locks held by syz-executor.2/8786: #0: ffff8881226ff450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881226ff450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88811bbbf250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88811bbbf250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/9442: #0: ffff888106c2e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888106c2e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88810d4bf310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88810d4bf310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/11605: #0: ffff8880aeb98450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880aeb98450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880bb2c5710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880bb2c5710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/11901: #0: ffff8880aabd6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880aabd6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880bb2624d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880bb2624d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12190: #0: ffff8880a313f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a313f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c06390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c06390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/12271: #0: ffff8880a6fbf450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a6fbf450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c2e9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c2e9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12390: #0: ffff8880a6fdd450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a6fdd450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c32490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c32490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12404: #0: ffff8880a326d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880a326d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3c4a550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3c4a550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/12993: #0: ffff88809c1f1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88809c1f1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3d4b190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3d4b190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/13101: #0: ffff88809fecd450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88809fecd450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3d29510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3d29510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/14114: #0: ffff8880908ea450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880908ea450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3eff550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3eff550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/14236: #0: ffff88809088f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88809088f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880a3f0e7d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880a3f0e7d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/15159: #0: ffff88808d29a450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88808d29a450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888089436710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888089436710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/15182: #0: ffff888085dc4450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888085dc4450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888089466290 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888089466290 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/15309: #0: ffff888082928450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888082928450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880894ea450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880894ea450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/15542: #0: ffff888082b27450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888082b27450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888089583850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888089583850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/16734: #0: ffff888073ca8450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888073ca8450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88808972c9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88808972c9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/16909: #0: ffff888073d32450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888073d32450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880897ad510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880897ad510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/17050: #0: ffff88807045b450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88807045b450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880897d5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880897d5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/17149: #0: ffff888070515450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888070515450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888070013390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888070013390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/18502: #0: ffff888061a58450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888061a58450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88807023a190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88807023a190 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/19058: #0: ffff88805de99450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88805de99450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880702ddb10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880702ddb10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/20423: #0: ffff88804f2b6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88804f2b6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888055538a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888055538a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/20608: #0: ffff88804b97f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88804b97f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888055552490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888055552490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/20673: #0: ffff88804ba92450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88804ba92450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880555a5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880555a5250 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/21944: #0: ffff8880406b7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880406b7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88803b418550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88803b418550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/22239: #0: ffff88803cfc8450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88803cfc8450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88803b485410 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88803b485410 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/22652: #0: ffff88803541f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88803541f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88803b4d17d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88803b4d17d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/25158: #0: ffff88801f2b7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88801f2b7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880208e8710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880208e8710 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/25721: #0: ffff8880174f2450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8880174f2450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8880209f1790 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8880209f1790 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/29180: #0: ffff8882130b1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882130b1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888218bff950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888218bff950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/29265: #0: ffff8882130dd450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882130dd450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88821384f750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88821384f750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/29526: #0: ffff888213134450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888213134450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213842510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213842510 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/30256: #0: ffff888212245450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888212245450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213953150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213953150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/31492: #0: ffff888100159450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888100159450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213bb9210 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213bb9210 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/32477: #0: ffff88820ec48450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820ec48450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888213bc9890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888213bc9890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/313: #0: ffff88820ed12450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820ed12450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888210115150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888210115150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/547: #0: ffff88820efce450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820efce450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888210180350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888210180350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/1430: #0: ffff88820d707450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820d707450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882102e4a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882102e4a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/1504: #0: ffff8881001f6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881001f6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888210343350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888210343350 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/2473: #0: ffff88820c3ad450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820c3ad450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820c895810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820c895810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/2538: #0: ffff88820be5d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820be5d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820c87d750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820c87d750 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/3000: #0: ffff888100223450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888100223450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820c909a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820c909a90 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/3733: #0: ffff88820af06450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820af06450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820caa8390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820caa8390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/5083: #0: ffff888208dbc450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888208dbc450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209079550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209079550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5415: #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5441: #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888209fd1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820907c150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5580: #0: ffff888209696450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888209696450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209121490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209121490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/5608: #0: ffff888208f6b450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888208f6b450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209013950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209013950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/5845: #0: ffff888207ca7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888207ca7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882091822d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882091822d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/6481: #0: ffff888206cb7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888206cb7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882092ac310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882092ac310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/7491: #0: ffff8882062e3450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882062e3450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888209346910 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888209346910 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/8252: #0: ffff8882061d7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882061d7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882058d89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882058d89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/8365: #0: ffff88820455c450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88820455c450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882058f2950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882058f2950 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/8706: #0: ffff888203d55450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888203d55450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820587c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820587c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/8715: #0: ffff88800fd98450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88800fd98450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882059d8990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882059d8990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/8758: #0: ffff888203e34450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888203e34450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820591d310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820591d310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/9507: #0: ffff8882035b3450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882035b3450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888205b471d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888205b471d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/10584: #0: ffff888008c4d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888008c4d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888205be98d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888205be98d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/10619: #0: ffff888008c1a450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888008c1a450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888205bbf550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888205bbf550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/10649: #0: ffff888202bb6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888202bb6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888202008810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888202008810 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/10834: #0: ffff888201f18450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888201f18450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820202e3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820202e3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/10848: #0: ffff888201fca450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888201fca450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888202070450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888202070450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/11696: #0: ffff888200e06450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888200e06450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882021ae310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882021ae310 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/12441: #0: ffff8882005d1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882005d1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff888202152890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff888202152890 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/12448: #0: ffff8882006d0450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8882006d0450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff88820220c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff88820220c550 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/12972: #0: ffff8881fff56450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fff56450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882023047d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882023047d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.3/13331: #0: ffff888200e2d450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff888200e2d450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8882023c1490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8882023c1490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/14082: #0: ffff8881fe5e9450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fe5e9450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fe8584d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fe8584d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/14636: #0: ffff8881fdd4f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fdd4f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fe9063d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fe9063d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/15325: #0: ffff8881fcc8e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fcc8e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fe9c89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fe9c89d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/15931: #0: ffff8881fc4aa450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fc4aa450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fea9d9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fea9d9d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.4/17831: #0: ffff8881fa6d1450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881fa6d1450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fb0b3990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fb0b3990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/19841: #0: ffff8881f8ed6450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f8ed6450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881fb287390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881fb287390 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/21360: #0: ffff8881f5dc2450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f5dc2450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f70ce450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f70ce450 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/21759: #0: ffff8881f556e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f556e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f720c490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f720c490 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/22191: #0: ffff8881f4ce0450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4ce0450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f7152850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f7152850 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/22527: #0: ffff8881f4f4b450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4f4b450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f730e150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f730e150 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.0/23228: #0: ffff8881f4739450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4739450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f7308b10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f7308b10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/23520: #0: ffff8881f4080450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f4080450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f385e990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f385e990 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.1/24183: #0: ffff8881270e7450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881270e7450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f3911a10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f3911a10 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.2/25345: #0: ffff8881f1d2e450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff8881f1d2e450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f39cc3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f39cc3d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 2 locks held by syz-executor.5/27168: #0: ffff88812771f450 (sb_writers#16){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1665 [inline] #0: ffff88812771f450 (sb_writers#16){.+.+}-{0:0}, at: mnt_want_write+0x1b/0x50 fs/namespace.c:354 #1: ffff8881f00252d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline] #1: ffff8881f00252d0 (&sb->s_type->i_mutex_key#21){+.+.}-{3:3}, at: vfs_setxattr+0x50/0xa0 fs/xattr.c:219 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 524 Comm: khungtaskd Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xb3/0xec lib/dump_stack.c:118 nmi_cpu_backtrace.cold.8+0x3e/0x58 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xd5/0xec lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline] watchdog+0x58e/0x680 kernel/hung_task.c:295 kthread+0x148/0x170 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 27278 Comm: syz-executor.0 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_serial_in+0xf/0x20 drivers/tty/serial/8250/8250_port.c:446 Code: 00 00 d3 e6 48 63 f6 48 03 77 48 8b 06 c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 0f b6 8f f1 00 00 00 8b 57 40 d3 e6 01 f2 ec <0f> b6 c0 c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 0f b6 8f f1 00 RSP: 0018:ffffc9000ed3bb38 EFLAGS: 00000006 RAX: 0000000000000005 RBX: ffffffff8680ebc0 RCX: 0000000000000000 RDX: 00000000000003f9 RSI: 0000000000000001 RDI: ffffffff8680ebc0 RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000000 R10: ffff8881eff58d50 R11: b184a0120d96a89b R12: 0000000000000001 R13: ffffffff85d01040 R14: 0000000000000041 R15: ffffffff84433440 FS: 00007fe7378a5700(0000) GS:ffff88812c100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000840 CR3: 00000001efe5b000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_port_in include/linux/serial_core.h:262 [inline] serial8250_console_write+0xd8/0x340 drivers/tty/serial/8250/8250_port.c:3250 call_console_drivers kernel/printk/printk.c:1816 [inline] console_unlock+0x516/0x650 kernel/printk/printk.c:2493 vprintk_emit+0x121/0x370 kernel/printk/printk.c:2021 printk+0x53/0x6a kernel/printk/printk.c:2070 connmark_tg_check.cold.8+0x10/0x15 net/netfilter/xt_connmark.c:108 xt_check_target+0x7f/0x190 net/netfilter/x_tables.c:1019 check_target net/ipv4/netfilter/arp_tables.c:400 [inline] find_check_entry net/ipv4/netfilter/arp_tables.c:424 [inline] translate_table+0x424/0x680 net/ipv4/netfilter/arp_tables.c:577 do_replace net/ipv4/netfilter/arp_tables.c:982 [inline] do_arpt_set_ctl+0x11f/0x1c0 net/ipv4/netfilter/arp_tables.c:1462 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x39/0x60 net/netfilter/nf_sockopt.c:115 __sys_setsockopt+0xcb/0x190 net/socket.c:2127 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0x1b/0x20 net/socket.c:2140 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45d5b9 Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fe7378a4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 000000000002da80 RCX: 000000000045d5b9 RDX: 0000000000000060 RSI: 0a02000000000000 RDI: 0000000000000006 RBP: 000000000118cf90 R08: 0000000000000420 R09: 0000000000000000 R10: 0000000020000840 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffea4928fbf R14: 00007fe7378a59c0 R15: 000000000118cf4c