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r0 = open(&(0x7f0000000340)='./bus\x00', 0x14927e, 0x102) fallocate(r0, 0x0, 0xb, 0x1000f2) r1 = syz_open_dev$loop(&(0x7f0000000140), 0x0, 0x0) syz_mount_image$ext4(&(0x7f00000002c0)='ext2\x00', &(0x7f0000000000)='./file1\x00', 0x3001040, &(0x7f0000000280)={[], [{@dont_measure}, {@rootcontext={'rootcontext', 0x3d, 'system_u'}}]}, 0x1, 0x564, &(0x7f0000000640)="$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") ioctl$LOOP_SET_BLOCK_SIZE(r1, 0x4c09, 0x8000) r2 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) pwritev2(r2, &(0x7f0000000100)=[{&(0x7f0000000180)="a7ade7daba06fa9a6e7ff5183dfe6e005f3e97356304b33885ccd7456e895bb633b29b729bb5950468dd418edf2f2132b7e6e644b506ab72993dabe41385d357a14bacbbfce7771aed87ae461d81e676fd8f4ec9bc6633f9899c3e44ce1c56a09d772cf0", 0x64}, {&(0x7f0000006b40)="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", 0xe9f}], 0x2, 0x19800000, 0x487, 0x15) [ 85.186454][ T5310] Bluetooth: hci0: command tx timeout [ 85.626985][ T5331] loop0: detected capacity change from 0 to 32768 [ 85.748136][ T5331] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nocow [ 85.748156][ T5331] allowing incompatible features above 0.0: (unknown version) [ 85.748164][ T5331] features: lz4,new_siphash,inline_data,new_extent_overwrite,btree_ptr_v2,new_varint,journal_no_flush,alloc_v2,extents_across_btree_nodes [ 85.770234][ T5331] bcachefs (loop0): Using encoding defined by superblock: utf8-12.1.0 [ 85.775586][ T5331] bcachefs (loop0): initializing new filesystem [ 85.823601][ T5331] bcachefs (loop0): going read-write [ 85.939710][ T5331] bcachefs (loop0): marking superblocks [ 85.956588][ T5331] bcachefs (loop0): initializing freespace [ 85.963944][ T5331] bcachefs (loop0): done initializing freespace [ 85.971545][ T5331] bcachefs (loop0): reading snapshots table [ 85.975132][ T5331] bcachefs (loop0): reading snapshots done [ 86.004714][ T5331] bcachefs (loop0): loop0: Superblock write was silently dropped! (seq 0 expected 42) [ 86.019572][ T5331] bcachefs (loop0): done starting filesystem [ 86.146242][ T5331] bcachefs (loop0 inum 4098 offset 1048576): data write error: I/O [ 86.154063][ T49] bcachefs (loop0): btree write error: I/O [ 86.154063][ T49] dirents level 0/0 [ 86.154063][ T49] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 8f514bfbaeda8002 written 8 min_key POS_MIN durability: 1 ptr: 0:42:128 gen 0 [ 86.165930][ T49] bcachefs (loop0): btree_node_write_work(): fatal error writing btree node: btree_node_write_all_failed [ 86.165930][ T49] dirents level 0/0 [ 86.165930][ T49] u64s 11 type btree_ptr_v2 SPOS_MAX len 0 ver 0: seq 8f514bfbaeda8002 written 8 min_key POS_MIN durability: 1 ptr: 0:42:128 gen 0 [ 86.182841][ T49] bcachefs (loop0): fatal error - emergency read only [ 86.186798][ T4677] bcachefs (loop0): error writing journal entry 2: I/O [ 86.190668][ T10] bcachefs (loop0): going read-only [ 86.194724][ T10] bcachefs (loop0): finished waiting for writes to stop [ 86.198492][ T5331] ================================================================== [ 86.202062][ T5331] BUG: KASAN: slab-use-after-free in __bch2_write+0x38f8/0x3900 [ 86.205469][ T5331] Read of size 2 at addr ffff88805332537c by task syz.0.0/5331 [ 86.208895][ T5331] [ 86.210029][ T5331] CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted 6.16.0-rc2-syzkaller-00045-g4663747812d1 #0 PREEMPT(full) [ 86.210047][ T5331] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.210057][ T5331] Call Trace: [ 86.210065][ T5331] [ 86.210078][ T5331] dump_stack_lvl+0x189/0x250 [ 86.210103][ T5331] ? __virt_addr_valid+0x1c8/0x5c0 [ 86.210121][ T5331] ? rcu_is_watching+0x15/0xb0 [ 86.210142][ T5331] ? __kasan_check_byte+0x12/0x40 [ 86.210156][ T5331] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.210174][ T5331] ? rcu_is_watching+0x15/0xb0 [ 86.210193][ T5331] ? lock_release+0x4b/0x3e0 [ 86.210213][ T5331] ? __virt_addr_valid+0x1c8/0x5c0 [ 86.210225][ T5331] ? __virt_addr_valid+0x4a5/0x5c0 [ 86.210239][ T5331] print_report+0xd2/0x2b0 [ 86.210257][ T5331] ? __bch2_write+0x38f8/0x3900 [ 86.210269][ T5331] kasan_report+0x118/0x150 [ 86.210281][ T5331] ? __pfx_hlock_conflict+0x10/0x10 [ 86.210293][ T5331] ? __bch2_write+0x38f8/0x3900 [ 86.210307][ T5331] __bch2_write+0x38f8/0x3900 [ 86.210319][ T5331] ? lockdep_unlock+0x89/0x120 [ 86.210334][ T5331] ? validate_chain+0x897/0x2140 [ 86.210348][ T5331] ? __lock_acquire+0xab9/0xd20 [ 86.210370][ T5331] ? filemap_get_folios_tag+0xed/0x630 [ 86.210387][ T5331] ? filemap_get_folios_tag+0x53b/0x630 [ 86.210401][ T5331] ? filemap_get_folios_tag+0xed/0x630 [ 86.210417][ T5331] ? __pfx___bch2_write+0x10/0x10 [ 86.210430][ T5331] ? mlock_drain_local+0x28e/0x490 [ 86.210447][ T5331] ? enumerated_ref_tryget+0x105/0x170 [ 86.210464][ T5331] ? bch2_write+0x719/0x10f0 [ 86.210479][ T5331] ? write_cache_pages+0xc1/0x100 [ 86.210498][ T5331] bch2_writepages+0x211/0x2d0 [ 86.210512][ T5331] ? __pfx_bch2_writepages+0x10/0x10 [ 86.210527][ T5331] do_writepages+0x32b/0x550 [ 86.210547][ T5331] ? do_raw_spin_unlock+0x4d/0x240 [ 86.210562][ T5331] file_write_and_wait_range+0x22c/0x330 [ 86.210576][ T5331] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 86.210589][ T5331] ? do_iter_readv_writev+0x56b/0x7f0 [ 86.210616][ T5331] bch2_fsync+0x127/0x330 [ 86.210631][ T5331] bch2_write_iter+0x2822/0x2b90 [ 86.210645][ T5331] ? __lock_acquire+0xab9/0xd20 [ 86.210670][ T5331] ? __pfx_bch2_write_iter+0x10/0x10 [ 86.210685][ T5331] ? preempt_schedule_common+0x83/0xd0 [ 86.210760][ T5331] do_iter_readv_writev+0x56b/0x7f0 [ 86.210781][ T5331] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 86.210794][ T5331] ? rcu_read_lock_any_held+0xb3/0x120 [ 86.210812][ T5331] vfs_writev+0x31a/0x960 [ 86.210827][ T5331] ? __lock_acquire+0xab9/0xd20 [ 86.210845][ T5331] ? __pfx_vfs_writev+0x10/0x10 [ 86.210864][ T5331] ? __fget_files+0x2a/0x420 [ 86.210879][ T5331] ? __fget_files+0x3a0/0x420 [ 86.210891][ T5331] ? __fget_files+0x2a/0x420 [ 86.210906][ T5331] __se_sys_pwritev2+0x179/0x290 [ 86.210920][ T5331] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 86.210933][ T5331] ? rcu_is_watching+0x15/0xb0 [ 86.210952][ T5331] ? do_syscall_64+0xbe/0x3b0 [ 86.210964][ T5331] ? __x64_sys_pwritev2+0x20/0xc0 [ 86.210977][ T5331] do_syscall_64+0xfa/0x3b0 [ 86.210988][ T5331] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.211005][ T5331] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.211018][ T5331] ? clear_bhb_loop+0x60/0xb0 [ 86.211032][ T5331] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.211044][ T5331] RIP: 0033:0x7fa92498e929 [ 86.211057][ T5331] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 86.211075][ T5331] RSP: 002b:00007fa920df5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 86.211091][ T5331] RAX: ffffffffffffffda RBX: 00007fa924bb5fa0 RCX: 00007fa92498e929 [ 86.211100][ T5331] RDX: 0000000000000002 RSI: 0000200000000100 RDI: 0000000000000006 [ 86.211109][ T5331] RBP: 00007fa924a10b39 R08: 0000000000000487 R09: 0000000000000015 [ 86.211118][ T5331] R10: 0000000019800000 R11: 0000000000000246 R12: 0000000000000000 [ 86.211126][ T5331] R13: 0000000000000000 R14: 00007fa924bb5fa0 R15: 00007ffc00213088 [ 86.211140][ T5331] [ 86.211144][ T5331] [ 86.383571][ T5331] Allocated by task 5331: [ 86.385473][ T5331] kasan_save_track+0x3e/0x80 [ 86.387603][ T5331] __kasan_slab_alloc+0x6c/0x80 [ 86.389761][ T5331] kmem_cache_alloc_noprof+0x1c1/0x3c0 [ 86.392191][ T5331] mempool_alloc_noprof+0x1a4/0x510 [ 86.394404][ T5331] bio_alloc_bioset+0x241/0x1110 [ 86.396707][ T5331] __bch2_writepage+0x1581/0x2790 [ 86.398863][ T5331] write_cache_pages+0x61/0x100 [ 86.400960][ T5331] bch2_writepages+0xf9/0x2d0 [ 86.403013][ T5331] do_writepages+0x32b/0x550 [ 86.405100][ T5331] file_write_and_wait_range+0x22c/0x330 [ 86.407505][ T5331] bch2_fsync+0x127/0x330 [ 86.409347][ T5331] bch2_write_iter+0x2822/0x2b90 [ 86.411401][ T5331] do_iter_readv_writev+0x56b/0x7f0 [ 86.413693][ T5331] vfs_writev+0x31a/0x960 [ 86.415572][ T5331] __se_sys_pwritev2+0x179/0x290 [ 86.417668][ T5331] do_syscall_64+0xfa/0x3b0 [ 86.419600][ T5331] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.422266][ T5331] [ 86.423321][ T5331] Freed by task 15: [ 86.424942][ T5331] kasan_save_track+0x3e/0x80 [ 86.427021][ T5331] kasan_save_free_info+0x46/0x50 [ 86.429212][ T5331] __kasan_slab_free+0x62/0x70 [ 86.431246][ T5331] slab_free_after_rcu_debug+0x129/0x2a0 [ 86.433769][ T5331] rcu_core+0xca5/0x1710 [ 86.435762][ T5331] handle_softirqs+0x286/0x870 [ 86.437925][ T5331] run_ksoftirqd+0x9b/0x100 [ 86.439907][ T5331] smpboot_thread_fn+0x53f/0xa60 [ 86.442115][ T5331] kthread+0x70e/0x8a0 [ 86.443956][ T5331] ret_from_fork+0x3f9/0x770 [ 86.446032][ T5331] ret_from_fork_asm+0x1a/0x30 [ 86.448120][ T5331] [ 86.449166][ T5331] Last potentially related work creation: [ 86.451595][ T5331] kasan_save_stack+0x3e/0x60 [ 86.453686][ T5331] kasan_record_aux_stack+0xbd/0xd0 [ 86.455949][ T5331] kmem_cache_free+0x2f6/0x400 [ 86.458025][ T5331] process_scheduled_works+0xae1/0x17b0 [ 86.460462][ T5331] worker_thread+0x8a0/0xda0 [ 86.462550][ T5331] kthread+0x70e/0x8a0 [ 86.464361][ T5331] ret_from_fork+0x3f9/0x770 [ 86.466406][ T5331] ret_from_fork_asm+0x1a/0x30 [ 86.468524][ T5331] [ 86.469609][ T5331] Second to last potentially related work creation: [ 86.472393][ T5331] kasan_save_stack+0x3e/0x60 [ 86.474467][ T5331] kasan_record_aux_stack+0xbd/0xd0 [ 86.476739][ T5331] insert_work+0x3d/0x330 [ 86.478608][ T5331] __queue_work+0xcfc/0xfe0 [ 86.480582][ T5331] queue_work_on+0x181/0x270 [ 86.482549][ T5331] closure_put_after_sub+0x2ac/0x320 [ 86.484904][ T5331] bch2_nocow_write+0x3ab2/0x3e90 [ 86.487040][ T5331] __bch2_write+0x371c/0x3900 [ 86.489099][ T5331] bch2_writepages+0x211/0x2d0 [ 86.491281][ T5331] do_writepages+0x32b/0x550 [ 86.493367][ T5331] file_write_and_wait_range+0x22c/0x330 [ 86.495841][ T5331] bch2_fsync+0x127/0x330 [ 86.497720][ T5331] bch2_write_iter+0x2822/0x2b90 [ 86.499889][ T5331] do_iter_readv_writev+0x56b/0x7f0 [ 86.502282][ T5331] vfs_writev+0x31a/0x960 [ 86.504299][ T5331] __se_sys_pwritev2+0x179/0x290 [ 86.506503][ T5331] do_syscall_64+0xfa/0x3b0 [ 86.508500][ T5331] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.511046][ T5331] [ 86.512146][ T5331] The buggy address belongs to the object at ffff888053325300 [ 86.512146][ T5331] which belongs to the cache bio-1072 of size 1072 [ 86.518002][ T5331] The buggy address is located 124 bytes inside of [ 86.518002][ T5331] freed 1072-byte region [ffff888053325300, ffff888053325730) [ 86.523873][ T5331] [ 86.524966][ T5331] The buggy address belongs to the physical page: [ 86.527707][ T5331] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x53324 [ 86.531407][ T5331] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 86.535015][ T5331] flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff) [ 86.538331][ T5331] page_type: f5(slab) [ 86.540125][ T5331] raw: 04fff00000000040 ffff88803fbd9500 dead000000000122 0000000000000000 [ 86.543793][ T5331] raw: 0000000000000000 00000000800d000d 00000000f5000000 0000000000000000 [ 86.547478][ T5331] head: 04fff00000000040 ffff88803fbd9500 dead000000000122 0000000000000000 [ 86.551178][ T5331] head: 0000000000000000 00000000800d000d 00000000f5000000 0000000000000000 [ 86.554894][ T5331] head: 04fff00000000002 ffffea00014cc901 00000000ffffffff 00000000ffffffff [ 86.558600][ T5331] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000004 [ 86.562279][ T5331] page dumped because: kasan: bad access detected [ 86.565091][ T5331] page_owner tracks the page as allocated [ 86.567537][ T5331] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5331, tgid 5330 (syz.0.0), ts 85931519984, free_ts 85839468045 [ 86.576374][ T5331] post_alloc_hook+0x240/0x2a0 [ 86.578514][ T5331] get_page_from_freelist+0x21e4/0x22c0 [ 86.580990][ T5331] __alloc_frozen_pages_noprof+0x181/0x370 [ 86.583560][ T5331] alloc_pages_mpol+0x232/0x4a0 [ 86.585729][ T5331] allocate_slab+0x8a/0x3b0 [ 86.587712][ T5331] ___slab_alloc+0xbfc/0x1480 [ 86.589770][ T5331] kmem_cache_alloc_noprof+0x283/0x3c0 [ 86.592087][ T5331] mempool_init_node+0x1e5/0x4d0 [ 86.594206][ T5331] mempool_init_noprof+0x3a/0x50 [ 86.596317][ T5331] bioset_init+0x2eb/0x790 [ 86.598251][ T5331] bch2_fs_fs_io_buffered_init+0x2b/0x50 [ 86.600654][ T5331] __bch2_fs_read_write+0x6cf/0x830 [ 86.602856][ T5331] bch2_fs_read_write_early+0x26/0x40 [ 86.605213][ T5331] bch2_fs_initialize+0xae2/0x1550 [ 86.607484][ T5331] bch2_fs_start+0xa88/0xd90 [ 86.609616][ T5331] bch2_fs_get_tree+0xb02/0x14f0 [ 86.611850][ T5331] page last free pid 5331 tgid 5330 stack trace: [ 86.614742][ T5331] __free_frozen_pages+0xc71/0xe70 [ 86.617155][ T5331] stack_depot_save_flags+0x445/0x900 [ 86.619570][ T5331] kasan_save_track+0x4f/0x80 [ 86.621697][ T5331] __kasan_kmalloc+0x93/0xb0 [ 86.623718][ T5331] __kmalloc_cache_node_noprof+0x234/0x3d0 [ 86.626336][ T5331] __get_vm_area_node+0x13f/0x300 [ 86.628686][ T5331] __vmalloc_node_range_noprof+0x301/0x12f0 [ 86.631474][ T5331] __vmalloc_node_range_noprof+0x56a/0x12f0 [ 86.634226][ T5331] __kvmalloc_node_noprof+0x3b8/0x5f0 [ 86.636664][ T5331] __bch2_darray_resize_noprof+0xd7/0x290 [ 86.639260][ T5331] bch2_fs_btree_write_buffer_init+0x16e/0x1f0 [ 86.642135][ T5331] __bch2_fs_read_write+0x679/0x830 [ 86.644454][ T5331] bch2_fs_read_write_early+0x26/0x40 [ 86.646798][ T5331] bch2_fs_initialize+0xae2/0x1550 [ 86.649142][ T5331] bch2_fs_start+0xa88/0xd90 [ 86.651205][ T5331] bch2_fs_get_tree+0xb02/0x14f0 [ 86.653488][ T5331] [ 86.654611][ T5331] Memory state around the buggy address: [ 86.657231][ T5331] ffff888053325200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc fc [ 86.660861][ T5331] ffff888053325280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 86.664449][ T5331] >ffff888053325300: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 86.668085][ T5331] ^ [ 86.671767][ T5331] ffff888053325380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 86.675396][ T5331] ffff888053325400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 86.678661][ T5331] ================================================================== [ 86.694181][ T9] cfg80211: failed to load regulatory.db [ 86.697944][ T10] bcachefs (loop0): flushing journal and stopping allocators, journal seq 2 [ 86.701941][ T10] bcachefs (loop0): flushing journal and stopping allocators complete, journal seq 2 [ 86.733267][ T10] bcachefs (loop0): unclean shutdown complete, journal seq 2 [ 86.737732][ T10] bcachefs (loop0): superblock read error: I/O [ 86.740475][ T10] bcachefs (loop0): bch2_write_super(): fatal error : Unable to write superblock to sufficient devices (from bch2_fs_read_only) [ 86.748682][ T10] bcachefs (loop0): done going read-only, filesystem not clean [ 86.767775][ T5331] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 86.771116][ T5331] CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted 6.16.0-rc2-syzkaller-00045-g4663747812d1 #0 PREEMPT(full) [ 86.775896][ T5331] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.780528][ T5331] Call Trace: [ 86.782076][ T5331] [ 86.783375][ T5331] dump_stack_lvl+0x99/0x250 [ 86.785329][ T5331] ? __asan_memcpy+0x40/0x70 [ 86.787348][ T5331] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.789741][ T5331] ? __pfx__printk+0x10/0x10 [ 86.791871][ T5331] panic+0x2db/0x790 [ 86.793746][ T5331] ? __pfx_panic+0x10/0x10 [ 86.795933][ T5331] ? _raw_spin_unlock_irqrestore+0xfd/0x110 [ 86.798499][ T5331] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 86.801231][ T5331] ? print_memory_metadata+0x314/0x400 [ 86.803657][ T5331] ? __bch2_write+0x38f8/0x3900 [ 86.805929][ T5331] check_panic_on_warn+0x89/0xb0 [ 86.808039][ T5331] ? __bch2_write+0x38f8/0x3900 [ 86.810260][ T5331] end_report+0x78/0x160 [ 86.812221][ T5331] kasan_report+0x129/0x150 [ 86.814302][ T5331] ? __pfx_hlock_conflict+0x10/0x10 [ 86.816630][ T5331] ? __bch2_write+0x38f8/0x3900 [ 86.818728][ T5331] __bch2_write+0x38f8/0x3900 [ 86.820629][ T5331] ? lockdep_unlock+0x89/0x120 [ 86.822946][ T5331] ? validate_chain+0x897/0x2140 [ 86.825490][ T5331] ? __lock_acquire+0xab9/0xd20 [ 86.827843][ T5331] ? filemap_get_folios_tag+0xed/0x630 [ 86.830433][ T5331] ? filemap_get_folios_tag+0x53b/0x630 [ 86.833078][ T5331] ? filemap_get_folios_tag+0xed/0x630 [ 86.835688][ T5331] ? __pfx___bch2_write+0x10/0x10 [ 86.838055][ T5331] ? mlock_drain_local+0x28e/0x490 [ 86.840373][ T5331] ? enumerated_ref_tryget+0x105/0x170 [ 86.842759][ T5331] ? bch2_write+0x719/0x10f0 [ 86.844884][ T5331] ? write_cache_pages+0xc1/0x100 [ 86.847021][ T5331] bch2_writepages+0x211/0x2d0 [ 86.849072][ T5331] ? __pfx_bch2_writepages+0x10/0x10 [ 86.851395][ T5331] do_writepages+0x32b/0x550 [ 86.853661][ T5331] ? do_raw_spin_unlock+0x4d/0x240 [ 86.855885][ T5331] file_write_and_wait_range+0x22c/0x330 [ 86.858418][ T5331] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 86.861133][ T5331] ? do_iter_readv_writev+0x56b/0x7f0 [ 86.863500][ T5331] bch2_fsync+0x127/0x330 [ 86.865421][ T5331] bch2_write_iter+0x2822/0x2b90 [ 86.867626][ T5331] ? __lock_acquire+0xab9/0xd20 [ 86.869839][ T5331] ? __pfx_bch2_write_iter+0x10/0x10 [ 86.872204][ T5331] ? preempt_schedule_common+0x83/0xd0 [ 86.874904][ T5331] do_iter_readv_writev+0x56b/0x7f0 [ 86.877651][ T5331] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 86.880548][ T5331] ? rcu_read_lock_any_held+0xb3/0x120 [ 86.883068][ T5331] vfs_writev+0x31a/0x960 [ 86.885013][ T5331] ? __lock_acquire+0xab9/0xd20 [ 86.887304][ T5331] ? __pfx_vfs_writev+0x10/0x10 [ 86.889686][ T5331] ? __fget_files+0x2a/0x420 [ 86.891787][ T5331] ? __fget_files+0x3a0/0x420 [ 86.893832][ T5331] ? __fget_files+0x2a/0x420 [ 86.895953][ T5331] __se_sys_pwritev2+0x179/0x290 [ 86.898142][ T5331] ? __pfx___se_sys_pwritev2+0x10/0x10 [ 86.900388][ T5331] ? rcu_is_watching+0x15/0xb0 [ 86.902484][ T5331] ? do_syscall_64+0xbe/0x3b0 [ 86.904565][ T5331] ? __x64_sys_pwritev2+0x20/0xc0 [ 86.906716][ T5331] do_syscall_64+0xfa/0x3b0 [ 86.908787][ T5331] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.911165][ T5331] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.913783][ T5331] ? clear_bhb_loop+0x60/0xb0 [ 86.916004][ T5331] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.918320][ T5331] RIP: 0033:0x7fa92498e929 [ 86.919938][ T5331] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 86.927806][ T5331] RSP: 002b:00007fa920df5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 [ 86.931606][ T5331] RAX: ffffffffffffffda RBX: 00007fa924bb5fa0 RCX: 00007fa92498e929 [ 86.934842][ T5331] RDX: 0000000000000002 RSI: 0000200000000100 RDI: 0000000000000006 [ 86.938328][ T5331] RBP: 00007fa924a10b39 R08: 0000000000000487 R09: 0000000000000015 [ 86.941786][ T5331] R10: 0000000019800000 R11: 0000000000000246 R12: 0000000000000000 [ 86.945300][ T5331] R13: 0000000000000000 R14: 00007fa924bb5fa0 R15: 00007ffc00213088 [ 86.948813][ T5331] [ 86.950545][ T5331] Kernel Offset: disabled [ 86.952491][ T5331] Rebooting in 86400 seconds..