ceph: No mds server is up or the cluster is laggy ceph: No mds server is up or the cluster is laggy libceph: connect [d::]:6789 error -101 libceph: mon0 [d::]:6789 connect error ------------[ cut here ]------------ kernel BUG at arch/x86/mm/physaddr.c:27! libceph: connect [d::]:6789 error -101 ceph: No mds server is up or the cluster is laggy libceph: mon0 [d::]:6789 connect error invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7324 Comm: syz-executor.2 Not tainted 4.19.195-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27 Code: 4f fb 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 30 22 37 00 48 85 db 75 0d e8 96 20 37 00 4c 89 e0 5b 5d 41 5c c3 e8 89 20 37 00 <0f> 0b e8 82 20 37 00 48 c7 c0 10 30 e7 89 48 ba 00 00 00 00 00 fc RSP: 0018:ffff8880472df400 EFLAGS: 00010293 RAX: ffff88800f0385c0 RBX: 0000000000070000 RCX: ffffffff812b5e48 RDX: 0000000000000000 RSI: ffffffff812b5ea7 RDI: 0000000000000006 RBP: 0000000080070000 R08: 0000000000000000 R09: 0000000080070000 R10: 0000000000000006 R11: 0000000000000000 R12: 0000778000070000 R13: ffff8880472df458 R14: 0000000000000000 R15: 0000000000000286 FS: 00007f16dd176700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 00000000a1aaf000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: virt_to_head_page include/linux/mm.h:665 [inline] qlink_to_cache mm/kasan/quarantine.c:127 [inline] qlist_free_all+0xbb/0x140 mm/kasan/quarantine.c:163 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] alloc_buffer_head+0x20/0x130 fs/buffer.c:3372 alloc_page_buffers+0x169/0x5c0 fs/buffer.c:830 create_empty_buffers+0x2c/0x760 fs/buffer.c:1528 create_page_buffers+0x212/0x350 fs/buffer.c:1645 __block_write_begin_int+0x22b/0x17b0 fs/buffer.c:1957 ext4_da_write_begin+0x4e1/0x10e0 fs/ext4/inode.c:3109 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295 ext4_file_write_iter+0x2fe/0xf20 fs/ext4/file.c:272 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665d9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f16dd176188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 000000010000005c RSI: 0000000020000580 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff6efad7af R14: 00007f16dd176300 R15: 0000000000022000 Modules linked in: wlan1: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge) ceph: No mds server is up or the cluster is laggy libceph: connect [d::]:6789 error -101 libceph: mon0 [d::]:6789 connect error ---[ end trace 035bc0a0e2872ada ]--- libceph: connect [d::]:6789 error -101 libceph: mon0 [d::]:6789 connect error ceph: No mds server is up or the cluster is laggy RIP: 0010:__phys_addr+0xa7/0x110 arch/x86/mm/physaddr.c:27 Code: 4f fb 09 4c 89 e3 31 ff 48 d3 eb 48 89 de e8 30 22 37 00 48 85 db 75 0d e8 96 20 37 00 4c 89 e0 5b 5d 41 5c c3 e8 89 20 37 00 <0f> 0b e8 82 20 37 00 48 c7 c0 10 30 e7 89 48 ba 00 00 00 00 00 fc ceph: No mds server is up or the cluster is laggy RSP: 0018:ffff8880472df400 EFLAGS: 00010293 RAX: ffff88800f0385c0 RBX: 0000000000070000 RCX: ffffffff812b5e48 RDX: 0000000000000000 RSI: ffffffff812b5ea7 RDI: 0000000000000006 RBP: 0000000080070000 R08: 0000000000000000 R09: 0000000080070000 R10: 0000000000000006 R11: 0000000000000000 R12: 0000778000070000 R13: ffff8880472df458 R14: 0000000000000000 R15: 0000000000000286 FS: 00007f16dd176700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000521130 CR3: 00000000a1aaf000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400