null deref RIP: 0010:sa_find_idx_tab+0x89/0x270 [zfs] #18159
Description
System information
| Type | Version/Name |
|---|---|
| Distribution Name | Nixos |
| Distribution Version | 26 |
| Kernel Version | Linux 6.6.119 |
| Architecture | amd64 |
| OpenZFS Version | 2.4.0 |
Describe the problem you're observing
[ 5.180801] BUG: kernel NULL pointer dereference, address: 0000000000000058
[ 5.182575] #PF: supervisor read access in kernel mode
[ 5.183663] #PF: error_code(0x0000) - not-present page
[ 5.184789] PGD 0 P4D 0
[ 5.185505] Oops: 0000 [#1] PREEMPT SMP NOPTI
[ 5.186628] CPU: 1 PID: 401 Comm: mount.zfs Tainted: P O 6.6.119 #1-NixOS
[ 5.188700] Hardware name: Linode Compute Instance, BIOS Not Specified
[ 5.190272] RIP: 0010:sa_find_idx_tab+0x89/0x270 [zfs]
[ 5.191514] Code: ba 01 00 00 00 66 25 ff 03 0f 44 c2 0f b7 c0 48 8d 95 58 ff ff ff 49 8d 7e 68 48 89 45 90 e8 7e fa e6 ff 49 89 c0 4c 8d 50 58 <48> 8b 40 58 49 39 c2 0f 84 9c 00 00 00 4d 8b 78 58 4d 2b 78 50 4d
[ 5.195737] RSP: 0018:ffffd24100cc38b8 EFLAGS: 00010246
[ 5.196841] RAX: 0000000000000000 RBX: ffff8967424c4200 RCX: 0000000000000000
[ 5.198706] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 5.200390] RBP: ffffd24100cc3978 R08: 0000000000000000 R09: 0000000000000001
[ 5.202134] R10: 0000000000000058 R11: ffff89677fff8000 R12: ffff8967486ee800
[ 5.203819] R13: 000000000000002c R14: ffff8967485bbf00 R15: ffff8967469cbcc0
[ 5.205699] FS: 00007f123afc2600(0000) GS:ffff89677bd00000(0000) knlGS:0000000000000000
[ 5.207777] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.209190] CR2: 0000000000000058 CR3: 00000001024c6006 CR4: 0000000000770ee0
[ 5.211055] PKRU: 55555554
[ 5.211835] Call Trace:
[ 5.212570] <TASK>
[ 5.213045] ? srso_alias_return_thunk+0x5/0xfbef5
[ 5.214236] ? kmem_cache_alloc+0x1c0/0x370
[ 5.215321] sa_build_index+0x98/0x2f0 [zfs]
[ 5.216758] sa_handle_get_from_db+0x137/0x190 [zfs]
[ 5.218155] zfs_znode_sa_init+0xae/0xe0 [zfs]
[ 5.219616] zfs_znode_alloc+0x1a8/0x810 [zfs]
[ 5.220881] zfs_zget+0x24b/0x290 [zfs]
[ 5.221813] zfs_domount+0x3f5/0x630 [zfs]
[ 5.222804] ? srso_alias_return_thunk+0x5/0xfbef5
[ 5.224015] zpl_mount+0x2a8/0x370 [zfs]
[ 5.225172] legacy_get_tree+0x2b/0x50
[ 5.226131] vfs_get_tree+0x29/0xf0
[ 5.226885] ? srso_alias_return_thunk+0x5/0xfbef5
[ 5.228105] path_mount+0x542/0xaf0
[ 5.228862] ? srso_alias_return_thunk+0x5/0xfbef5
[ 5.230055] __x64_sys_mount+0x117/0x150
[ 5.231098] do_syscall_64+0x39/0x90
[ 5.232072] entry_SYSCALL_64_after_hwframe+0x78/0xe2
[ 5.233141] RIP: 0033:0x7f123b7efd1e
[ 5.233916] Code: 48 8b 0d f5 70 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c2 70 0d 00 f7 d8 64 89 01 48
[ 5.237772] RSP: 002b:00007ffff4333e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 5.239349] RAX: ffffffffffffffda RBX: 000055761da10de0 RCX: 00007f123b7efd1e
[ 5.240927] RDX: 00007f123c2e4737 RSI: 00007ffff4339320 RDI: 000055761da10df0
[ 5.242424] RBP: 00007ffff4335f00 R08: 00007ffff4334ec0 R09: 0000000000000000
[ 5.243920] R10: 0000000000200000 R11: 0000000000000246 R12: 0000000000000004
[ 5.245439] R13: 00007ffff4339320 R14: 000055761da10df0 R15: 00007ffff43361d0
[ 5.246921] </TASK>
[ 5.247412] Modules linked in: atkbd libps2 vivaldi_fmap i8042 crc32c_intel serio zfs(PO) spl(O) vmxnet3 vmwgfx vmw_vmci vmw_pvscsi virtio_pci virtio virtio_pci_legacy_dev virtio_pci_modern_dev virtio_ring sr_mod cdrom sd_mod t10_pi crc64_rocksoft crc64 crc_t10dif crct10dif_generic crct10dif_pclmul crct10dif_common pata_acpi lpc_ich intel_agp intel_gtt i2c_piix4 i2c_i801 i2c_smbus dm_mod dax cirrus bochs drm_vram_helper drm_ttm_helper ttm ata_piix ata_generic ahci libahci libata scsi_mod scsi_common
[ 5.256454] CR2: 0000000000000058
[ 5.257175] ---[ end trace 0000000000000000 ]---
[ 5.258156] RIP: 0010:sa_find_idx_tab+0x89/0x270 [zfs]
[ 5.259376] Code: ba 01 00 00 00 66 25 ff 03 0f 44 c2 0f b7 c0 48 8d 95 58 ff ff ff 49 8d 7e 68 48 89 45 90 e8 7e fa e6 ff 49 89 c0 4c 8d 50 58 <48> 8b 40 58 49 39 c2 0f 84 9c 00 00 00 4d 8b 78 58 4d 2b 78 50 4d
[ 5.263223] RSP: 0018:ffffd24100cc38b8 EFLAGS: 00010246
[ 5.264325] RAX: 0000000000000000 RBX: ffff8967424c4200 RCX: 0000000000000000
[ 5.265844] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 5.267337] RBP: ffffd24100cc3978 R08: 0000000000000000 R09: 0000000000000001
[ 5.268829] R10: 0000000000000058 R11: ffff89677fff8000 R12: ffff8967486ee800
[ 5.270325] R13: 000000000000002c R14: ffff8967485bbf00 R15: ffff8967469cbcc0
[ 5.271819] FS: 00007f123afc2600(0000) GS:ffff89677bd00000(0000) knlGS:0000000000000000
[ 5.273503] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5.274734] CR2: 0000000000000058 CR3: 00000001024c6006 CR4: 0000000000770ee0
[ 5.276226] PKRU: 55555554
[ 5.276818] note: mount.zfs[401] exited with irqs disabled
Describe how to reproduce the problem
This is a VM on the cloud with 2.4.0 failing to mount root fs. Hence cant debug it further. Maybe it needs more RAM?
Any ideas?
best,
evrim.