I recently started seeing test failures like the following; from the "shutdown complete" line we're well after the point where we called debugfs_remove_recursive() - yet from the backtrace we were still able to call into debugfs. And I see from the history the remove path has been getting tweaked, so... 00091 ========= TEST generic/001 00091 00092 Setting up swapspace version 1, size = 2 GiB (2147479552 bytes) 00092 no label, UUID=73a80295-2b03-4512-aae1-785187926ce3 00092 Adding 2097148k swap on /dev/vde. Priority:-2 extents:1 across:2097148k 00092 configuration error - unknown item 'NONEXISTENT' (notify administrator) 00092 configuration error - unknown item 'PREVENT_NO_AUTH' (notify administrator) 00094 configuration error - unknown item 'NONEXISTENT' (notify administrator) 00094 configuration error - unknown item 'PREVENT_NO_AUTH' (notify administrator) 00094 configuration error - unknown item 'NONEXISTENT' (notify administrator) 00094 configuration error - unknown item 'PREVENT_NO_AUTH' (notify administrator) 00101 building 001... done 00101 bcachefs (vdb): mounting version 1.7: mi_btree_bitmap 00101 bcachefs (vdb): initializing new filesystem 00101 bcachefs (vdb): going read-write 00101 bcachefs (vdb): marking superblocks 00101 bcachefs (vdb): initializing freespace 00101 bcachefs (vdb): done initializing freespace 00101 bcachefs (vdb): reading snapshots table 00101 bcachefs (vdb): reading snapshots done 00101 bcachefs (vdb): done starting filesystem 00102 FSTYP -- bcachefs 00102 PLATFORM -- Linux/aarch64 Debian-1103-bullseye-arm64-base-kvm 6.9.0-rc2-ktest-g2719f811ae24 #18142 SMP Sun Apr 14 16:26:05 NZST 2024 00102 MKFS_OPTIONS -- --encrypted --no_passphrase /dev/vdc 00102 MOUNT_OPTIONS -- /dev/vdc /mnt/scratch 00102 00102 bcachefs (vdc): mounting version 1.7: mi_btree_bitmap 00102 bcachefs (vdc): initializing new filesystem 00102 bcachefs (vdc): going read-write 00102 bcachefs (vdc): marking superblocks 00102 bcachefs (vdc): initializing freespace 00102 bcachefs (vdc): done initializing freespace 00102 bcachefs (vdc): reading snapshots table 00102 bcachefs (vdc): reading snapshots done 00102 bcachefs (vdc): done starting filesystem 00102 bcachefs (vdc): shutting down 00102 bcachefs (vdc): going read-only 00102 bcachefs (vdc): finished waiting for writes to stop 00102 bcachefs (vdc): flushing journal and stopping allocators, journal seq 3 00102 bcachefs (vdc): flushing journal and stopping allocators complete, journal seq 5 00102 bcachefs (vdc): shutdown complete, journal seq 6 00102 bcachefs (vdc): marking filesystem clean 00102 bcachefs (vdc): shutdown complete 00102 bcachefs (vdb): shutting down 00102 bcachefs (vdb): going read-only 00102 bcachefs (vdb): finished waiting for writes to stop 00102 bcachefs (vdb): flushing journal and stopping allocators, journal seq 6 00102 bcachefs (vdb): flushing journal and stopping allocators complete, journal seq 7 00102 bcachefs (vdb): shutdown complete, journal seq 8 00102 bcachefs (vdb): marking filesystem clean 00102 bcachefs (vdb): shutdown complete 00102 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000010 00102 Mem abort info: 00102 ESR = 0x0000000096000004 00102 EC = 0x25: DABT (current EL), IL = 32 bits 00102 SET = 0, FnV = 0 00102 EA = 0, S1PTW = 0 00102 FSC = 0x04: level 0 translation fault 00102 Data abort info: 00102 ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 00102 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 00102 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 00102 user pgtable: 4k pages, 48-bit VAs, pgdp=000000011585c000 00102 [0000000000000010] pgd=0000000000000000, p4d=0000000000000000 00102 Internal error: Oops: 0000000096000004 [#1] SMP 00102 Modules linked in: 00102 CPU: 7 PID: 1805 Comm: cat Not tainted 6.9.0-rc2-ktest-g2719f811ae24 #18142 00102 Hardware name: linux,dummy-virt (DT) 00102 pstate: 00001005 (nzcv daif -PAN -UAO -TCO -DIT +SSBS BTYPE=--) 00102 pc : bch2_journal_seq_pins_to_text+0x100/0x208 00102 lr : bch2_journal_seq_pins_to_text+0xf0/0x208 00102 sp : ffff0000d6dd3c80 00102 x29: ffff0000d6dd3c80 x28: ffff0000ca361f00 x27: 0000000000000000 00102 x26: 0000000000000000 x25: ffff0000da0002c0 x24: ffff0000da0002f0 00102 x23: ffff0000d50668c0 x22: ffff800080998950 x21: ffff0000da0002c0 00102 x20: ffff0000c46165c0 x19: 0000000000000000 x18: 00000000fffffffe 00102 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 00102 x14: ffffffffffffffff x13: ffff0000c0ada1df x12: ffff0000c0ada1d9 00102 x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800080400ec8 00102 x8 : 0000000000000000 x7 : 20746e756f63203a x6 : 0000000000000000 00102 x5 : 0000000000000020 x4 : 000000000000000d x3 : ffff0000c0ada1d0 00102 x2 : 0000000000000010 x1 : ffff0000c0ada1d0 x0 : 0000000000000012 00102 Call trace: 00102 bch2_journal_seq_pins_to_text+0x100/0x208 00102 bch2_journal_pins_read+0x48/0xd0 00102 full_proxy_read+0x64/0xb8 00102 vfs_read+0xd0/0x2d0 00102 ksys_read+0x5c/0xe0 00102 __arm64_sys_read+0x20/0x30 00102 invoke_syscall.constprop.0+0x50/0xe0 00102 do_el0_svc+0x44/0xc8 00102 el0_svc+0x18/0x58 00102 el0t_64_sync_handler+0xb8/0xc0 00102 el0t_64_sync+0x14c/0x150 00102 Code: f94002b3 eb15027f 54000180 d503201f (f9400a63) 00102 ---[ end trace 0000000000000000 ]--- 00102 Kernel panic - not syncing: Oops: Fatal exception 00102 SMP: stopping secondary CPUs 00102 Kernel Offset: disabled 00102 CPU features: 0x0,00000003,80000008,4240500b 00102 Memory Limit: none 00102 ---[ end Kernel panic - not syncing: Oops: Fatal exception ]--- 00107 ========= FAILED TIMEOUT generic.001 in 1200s
