ci2 starts bisection 2023-05-25 14:15:15.39808401 +0000 UTC m=+14089.794294514 bisecting fixing commit since 7eaef76fbc4621ced374c85dbc000dd80dc681d7 building syzkaller on 7939252e4ddf50bbb9912069a40d32f6c83c4f8e ensuring issue is reproducible on original commit 7eaef76fbc4621ced374c85dbc000dd80dc681d7 testing commit 7eaef76fbc4621ced374c85dbc000dd80dc681d7 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 9806b58ce739f03cf13c467be2f28f74c6a37901dfb47ce68057813e5069a0cf all runs: crashed: WARNING in kernfs_remove_by_name_ns testing current HEAD a343b0dd87b42ba9d508fbf7d0c06f744c2e0954 testing commit a343b0dd87b42ba9d508fbf7d0c06f744c2e0954 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 39673bb8afbbdf000ffbda571934115454c1af44110c8d4fd0bb7c76b5f25d87 all runs: crashed: WARNING in kernfs_remove_by_name_ns crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 57m14.998421628s (build: 50m20.941920423s, test: 6m21.416091739s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Linux 6.1.30 crash: WARNING in kernfs_remove_by_name_ns el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 kobject_add_internal failed for qgroups (error: -12 parent: 395ef67a-297e-477c-816d-cd80a5b93e5d) ------------[ cut here ]------------ kernfs: can not remove 'enabled', no directory WARNING: CPU: 1 PID: 4729 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0xf0/0x160 Modules linked in: CPU: 1 PID: 4729 Comm: syz-executor.0 Not tainted 6.1.30-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kernfs_remove_by_name_ns+0xf0/0x160 lr : kernfs_remove_by_name_ns+0xec/0x160 fs/kernfs/dir.c:1625 sp : ffff80001c397830 x29: ffff80001c397830 x28: 1fffe0001a5beb42 x27: dfff800000000000 x26: 00000000fffffff4 x25: ffff8000148ca288 x24: 1ffff00002270fc0 x23: dfff800000000000 x22: ffff8000148ca2c0 x21: ffff8000148ca288 x20: 00000000fffffffe x19: ffff800011387e00 x18: 1fffe0003690d576 x17: ffff80001422d000 x16: ffff8000082a9aa4 x15: ffff0001b486abbc x14: 1ffff000028460b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 31ede640fb3da800 x8 : 31ede640fb3da800 x7 : ffff800008221d34 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800010f9ad40 x0 : ffff8001a06ea000 Call trace: kernfs_remove_by_name_ns+0xf0/0x160 kernfs_remove_by_name include/linux/kernfs.h:618 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0x13c/0x228 fs/sysfs/group.c:288 sysfs_remove_groups+0x64/0x98 fs/sysfs/group.c:312 __kobject_del+0x88/0x28c lib/kobject.c:587 kobject_del+0x40/0x58 lib/kobject.c:619 btrfs_sysfs_del_qgroups+0x108/0x150 fs/btrfs/sysfs.c:2214 btrfs_sysfs_add_qgroups+0x25c/0x274 fs/btrfs/sysfs.c:2253 btrfs_quota_enable+0x1c8/0x1914 fs/btrfs/qgroup.c:986 btrfs_ioctl_quota_ctl+0x100/0x14c fs/btrfs/ioctl.c:4578 btrfs_ioctl+0x670/0x9dc fs/btrfs/ioctl.c:5541 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x110/0x14c fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x7c/0x258 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x160/0x1e4 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x54/0x178 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 82158 hardirqs last enabled at (82157): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (82157): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000 hardirqs last disabled at (82158): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (82124): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (82124): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (82065): [] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernfs: can not remove 'inconsistent', no directory WARNING: CPU: 1 PID: 4729 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0xf0/0x160 Modules linked in: CPU: 1 PID: 4729 Comm: syz-executor.0 Tainted: G W 6.1.30-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kernfs_remove_by_name_ns+0xf0/0x160 lr : kernfs_remove_by_name_ns+0xec/0x160 fs/kernfs/dir.c:1625 sp : ffff80001c397830 x29: ffff80001c397830 x28: 1fffe0001a5beb42 x27: dfff800000000000 x26: 00000000fffffff4 x25: ffff8000148ca290 x24: 1ffff00002270fc0 x23: dfff800000000000 x22: ffff8000148ca320 x21: ffff8000148ca290 x20: 00000000fffffffe x19: ffff800011387e00 x18: 1fffe0003690d576 x17: ffff80001422d000 x16: ffff8000082a9aa4 x15: ffff0001b486abbc x14: 1ffff000028460b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 31ede640fb3da800 x8 : 31ede640fb3da800 x7 : ffff800008221d34 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800010f9ad40 x0 : ffff8001a06ea000 Call trace: kernfs_remove_by_name_ns+0xf0/0x160 kernfs_remove_by_name include/linux/kernfs.h:618 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0x13c/0x228 fs/sysfs/group.c:288 sysfs_remove_groups+0x64/0x98 fs/sysfs/group.c:312 __kobject_del+0x88/0x28c lib/kobject.c:587 kobject_del+0x40/0x58 lib/kobject.c:619 btrfs_sysfs_del_qgroups+0x108/0x150 fs/btrfs/sysfs.c:2214 btrfs_sysfs_add_qgroups+0x25c/0x274 fs/btrfs/sysfs.c:2253 btrfs_quota_enable+0x1c8/0x1914 fs/btrfs/qgroup.c:986 btrfs_ioctl_quota_ctl+0x100/0x14c fs/btrfs/ioctl.c:4578 btrfs_ioctl+0x670/0x9dc fs/btrfs/ioctl.c:5541 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x110/0x14c fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x7c/0x258 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x160/0x1e4 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x54/0x178 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 82562 hardirqs last enabled at (82561): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (82561): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000 hardirqs last disabled at (82562): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (82544): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (82544): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (82499): [] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernfs: can not remove 'drop_subtree_threshold', no directory WARNING: CPU: 1 PID: 4729 at fs/kernfs/dir.c:1626 kernfs_remove_by_name_ns+0xf0/0x160 Modules linked in: CPU: 1 PID: 4729 Comm: syz-executor.0 Tainted: G W 6.1.30-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kernfs_remove_by_name_ns+0xf0/0x160 lr : kernfs_remove_by_name_ns+0xec/0x160 fs/kernfs/dir.c:1625 sp : ffff80001c397830 x29: ffff80001c397830 x28: 1fffe0001a5beb42 x27: dfff800000000000 x26: 00000000fffffff4 x25: ffff8000148ca298 x24: 1ffff00002270fc0 x23: dfff800000000000 x22: ffff8000148ca380 x21: ffff8000148ca298 x20: 00000000fffffffe x19: ffff800011387e00 x18: 1fffe0003690d576 x17: ffff80001422d000 x16: ffff8000082a9aa4 x15: ffff0001b486abbc x14: 1ffff000028460b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 31ede640fb3da800 x8 : 31ede640fb3da800 x7 : ffff800008221d34 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800010f9ad40 x0 : ffff8001a06ea000 Call trace: kernfs_remove_by_name_ns+0xf0/0x160 kernfs_remove_by_name include/linux/kernfs.h:618 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0x13c/0x228 fs/sysfs/group.c:288 sysfs_remove_groups+0x64/0x98 fs/sysfs/group.c:312 __kobject_del+0x88/0x28c lib/kobject.c:587 kobject_del+0x40/0x58 lib/kobject.c:619 btrfs_sysfs_del_qgroups+0x108/0x150 fs/btrfs/sysfs.c:2214 btrfs_sysfs_add_qgroups+0x25c/0x274 fs/btrfs/sysfs.c:2253 btrfs_quota_enable+0x1c8/0x1914 fs/btrfs/qgroup.c:986 btrfs_ioctl_quota_ctl+0x100/0x14c fs/btrfs/ioctl.c:4578 btrfs_ioctl+0x670/0x9dc fs/btrfs/ioctl.c:5541 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x110/0x14c fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x7c/0x258 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x160/0x1e4 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x54/0x178 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 82836 hardirqs last enabled at (82835): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (82835): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000 hardirqs last disabled at (82836): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (82806): [] softirq_handle_end kernel/softirq.c:414 [inline] softirqs last enabled at (82806): [] __do_softirq+0xc14/0xea0 kernel/softirq.c:600 softirqs last disabled at (82565): [] ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]---