On Mon, Jan 18, 2021 at 07:25:47PM +0000, Christoph Hellwig wrote: > Hi all, > > latest Linus' tree crashes every few runs for me when running on x86_64, > 4k block size, virtio-blk, CONFIG_XFS_DEBUG enabled: > > Dmesg: > [ 93.950923] XFS: Assertion failed: percpu_counter_compare(&mp->m_ifree, 0) >5 This is likely fixed by the first patch [1] in my log covering rework series. generic/388 was recently modified to reproduce. Brian [1] https://lore.kernel.org/linux-xfs/20210106174127.805660-2-bfoster@xxxxxxxxxx/ > [ 93.953038] ------------[ cut here ]------------ > [ 93.953688] kernel BUG at fs/xfs/xfs_message.c:110! > [ 93.954960] invalid opcode: 0000 [#1] PREEMPT SMP PTI > [ 93.955765] CPU: 2 PID: 5064 Comm: fsstress Not tainted 5.11.0-rc4 #445 > [ 93.956857] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.144 > [ 93.958310] RIP: 0010:assfail+0x1e/0x23 > [ 93.958912] Code: a0 87 04 83 e8 85 fc ff ff 0f 0b c3 41 89 c8 48 89 d1 48 84 > [ 93.962114] RSP: 0018:ffffc90002dc3a40 EFLAGS: 00010202 > [ 93.962828] RAX: 0000000000000000 RBX: ffff88810ce39000 RCX: 0000000000000000 > [ 93.963809] RDX: 00000000ffffffc0 RSI: 0000000000000000 RDI: ffffffff82fb4471 > [ 93.964799] RBP: ffff88810d7d0258 R08: 0000000000000000 R09: 000000000000000a > [ 93.965764] R10: 000000000000000a R11: f000000000000000 R12: 0000000000000000 > [ 93.966698] R13: ffff88810ce39520 R14: ffffffffffffffff R15: ffff88810d7d0310 > [ 93.967593] FS: 00007fd84a28db80(0000) GS:ffff88813bd00000(0000) knlGS:00000 > [ 93.968605] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 93.969354] CR2: 00007fd84a492000 CR3: 000000010d7da000 CR4: 00000000000006e0 > [ 93.970290] Call Trace: > [ 93.970607] xfs_trans_unreserve_and_mod_sb+0x1ed/0x270 > [ 93.971423] xfs_log_commit_cil+0x598/0xac0 > [ 93.972222] __xfs_trans_commit+0xbe/0x3e0 > [ 93.972820] xfs_create+0x551/0x630 > [ 93.973333] xfs_generic_create+0x240/0x320 > [ 93.973941] ? d_splice_alias+0x169/0x490 > [ 93.974473] lookup_open.isra.0+0x2da/0x610 > [ 93.975011] path_openat+0x261/0x920 > [ 93.975466] do_filp_open+0x83/0x130 > [ 93.975922] ? _raw_spin_unlock+0x24/0x40 > [ 93.976434] ? alloc_fd+0xf1/0x1e0 > [ 93.976917] do_sys_openat2+0x92/0x150 > [ 93.977558] __x64_sys_creat+0x44/0x60 > [ 93.978125] do_syscall_64+0x33/0x40 > [ 93.978585] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > [ 93.979241] RIP: 0033:0x7fd84a379cc4 > [ 93.979717] Code: 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 4c > [ 93.982051] RSP: 002b:00007ffe6f490268 EFLAGS: 00000246 ORIG_RAX: 00000000005 > [ 93.983068] RAX: ffffffffffffffda RBX: 0000000000000047 RCX: 00007fd84a379cc4 > [ 93.984079] RDX: 0000000000000000 RSI: 00000000000001b6 RDI: 0000559463b37ff0 > [ 93.984993] RBP: 00007ffe6f4903d0 R08: fefefefefefefeff R09: fefeff36ff603365 > [ 93.985916] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000001b6 > [ 93.986935] R13: 0000000000000001 R14: 00007ffe6f490470 R15: 00005594625041c0 > [ 93.987971] Modules linked in: >
