Hello, syzbot found the following issue on:
HEAD commit: 0eedceaf Add linux-next specific files for 20201201 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=11111df7500000 kernel config: https://syzkaller.appspot.com/x/.config?x=55aec7153b7827ea dashboard link: https://syzkaller.appspot.com/bug?extid=4ff9239a00671c7c656f compiler: gcc (GCC) 10.1.0-syz 20200507 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4ff9239a00671c7c6...@syzkaller.appspotmail.com INFO: task syz-executor.2:10555 can't die for more than 143 seconds. task:syz-executor.2 state:D stack:27024 pid:10555 ppid: 8514 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4325 [inline] __schedule+0x8cd/0x2150 kernel/sched/core.c:5076 schedule+0xcf/0x270 kernel/sched/core.c:5155 p9_client_rpc+0x400/0x1240 net/9p/client.c:759 p9_client_flush+0x1f9/0x430 net/9p/client.c:667 p9_client_rpc+0xfde/0x1240 net/9p/client.c:784 p9_client_version net/9p/client.c:955 [inline] p9_client_create+0xae1/0x1110 net/9p/client.c:1055 v9fs_session_init+0x1dd/0x1770 fs/9p/v9fs.c:406 v9fs_mount+0x79/0x9b0 fs/9p/vfs_super.c:126 legacy_get_tree+0x105/0x220 fs/fs_context.c:592 vfs_get_tree+0x89/0x2f0 fs/super.c:1549 do_new_mount fs/namespace.c:2896 [inline] path_mount+0x12ae/0x1e70 fs/namespace.c:3227 do_mount fs/namespace.c:3240 [inline] __do_sys_mount fs/namespace.c:3448 [inline] __se_sys_mount fs/namespace.c:3425 [inline] __x64_sys_mount+0x27f/0x300 fs/namespace.c:3425 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45de79 RSP: 002b:00007f4ba88a6c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045de79 RDX: 0000000020000200 RSI: 0000000020000000 RDI: 0000000000000000 RBP: 000000000118bf70 R08: 0000000020000140 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff44b1496f R14: 00007f4ba88a79c0 R15: 000000000118bf2c Showing all locks held in the system: 2 locks held by kworker/u4:3/81: 1 lock held by khungtaskd/1618: #0: ffffffff8b33a7a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6254 1 lock held by systemd-journal/4903: 1 lock held by in:imklog/8195: #0: ffff88801dba7270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:923 ============================================= --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkal...@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
