Not sure if I've already reported this one, but I've been seeing this a lot this last couple days.
kernel BUG at mm/page-writeback.c:2654! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN CPU: 1 PID: 2566 Comm: trinity-c1 Tainted: G W 4.4.0-rc4-think+ #14 task: ffff880462811b80 ti: ffff8800cd808000 task.ti: ffff8800cd808000 RIP: 0010:[<ffffffff8826ff40>] [<ffffffff8826ff40>] clear_page_dirty_for_io+0x180/0x1d0 RSP: 0018:ffff8800cd80fa00 EFLAGS: 00010246 RAX: 800000000000080c RBX: ffffea0011098a00 RCX: ffff8800cd80fbb7 RDX: dffffc0000000000 RSI: 1ffff10019b01f76 RDI: ffffea0011098a00 RBP: ffff8800cd80fa20 R08: ffff880453272000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88045326f2c0 R13: ffff88046272a310 R14: 0000000000000000 R15: 0000000000000001 FS: 00007f186573d700(0000) GS:ffff880468a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000010dd580 CR3: 000000046261c000 CR4: 00000000001406e0 Stack: 0000000000000001 ffff88046272a310 ffff88046272a310 0000000000000000 ffff8800cd80fa90 ffffffffc03891b5 ffff8800cd80fb30 ffff880402400040 ffff88045326f0e8 0000000000001000 ffff88045326ed88 ffff8800cd80fbb0 Call Trace: [<ffffffffc03891b5>] lock_and_cleanup_extent_if_need+0xa5/0x260 [btrfs] [<ffffffffc038acf4>] __btrfs_buffered_write+0x324/0x8a0 [btrfs] [<ffffffffc038a9d0>] ? btrfs_dirty_pages+0xf0/0xf0 [btrfs] [<ffffffff88261adc>] ? generic_file_direct_write+0x2ac/0x2c0 [<ffffffff88261830>] ? generic_file_read_iter+0xa00/0xa00 [<ffffffffc039066d>] btrfs_file_write_iter+0x6dd/0x800 [btrfs] [<ffffffff882f6a0d>] __vfs_write+0x21d/0x260 [<ffffffff882f67f0>] ? __vfs_read+0x260/0x260 [<ffffffff8812ed62>] ? __lock_is_held+0x92/0xd0 [<ffffffff880ee3b1>] ? preempt_count_sub+0xc1/0x120 [<ffffffff8812cd47>] ? percpu_down_read+0x57/0xa0 [<ffffffff882fbde4>] ? __sb_start_write+0xb4/0xf0 [<ffffffff882f77f6>] vfs_write+0xf6/0x260 [<ffffffff882f8e0f>] SyS_write+0xbf/0x160 [<ffffffff882f8d50>] ? SyS_read+0x160/0x160 [<ffffffff88002017>] ? trace_hardirqs_on_thunk+0x17/0x19 [<ffffffff88cea997>] entry_SYSCALL_64_fastpath+0x12/0x6b Code: 61 01 49 8d bd f0 00 00 00 8d 14 c5 08 00 00 00 e8 b6 cd 31 00 f6 c7 02 74 20 e8 8c 41 ec ff 53 9d b8 01 00 00 00 e9 1d ff ff ff <0f> 0b 48 89 df e8 b6 f5 ff ff e9 41 ff ff ff 53 9d e8 0a e7 eb That BUG is.. 2653 2654 BUG_ON(!PageLocked(page)); 2655 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
