linux-next test error: WARNING in remove_proc_entry

Status: closed as invalid on 2019/08/23 00:00
Subsystems: net nfs
[Documentation on labels]
Reported-by: syzbot+4887e9dd9042fae2a9c2@syzkaller.appspotmail.com
First crash: 2646d, last: 2643d
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
Reminder: 1 open syzbot bug in "net/sunrpc" subsystem 1 (1) 2019/07/24 02:51
linux-next test error: WARNING in remove_proc_entry 0 (1) 2019/05/13 07:07

Sample crash report:
------------[ cut here ]------------
remove_proc_entry: removing non-empty directory 'net/rpc', leaking at least 'use-gss-proxy'
WARNING: CPU: 1 PID: 7 at fs/proc/generic.c:681 remove_proc_entry+0x367/0x410 fs/proc/generic.c:681
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 7 Comm: kworker/u4:0 Not tainted 5.1.0-next-20190515 #14
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x75a kernel/panic.c:218
 __warn.cold+0x20/0x47 kernel/panic.c:575
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:180 [inline]
 fixup_bug arch/x86/kernel/traps.c:175 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:273
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:292
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:972
RIP: 0010:remove_proc_entry+0x367/0x410 fs/proc/generic.c:681
Code: 00 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 75 4c 49 8b 95 d0 00 00 00 48 c7 c6 40 8d 97 87 48 c7 c7 c0 8c 97 87 e8 87 c9 6d ff <0f> 0b e9 4b fe ff ff e8 cd 56 d4 ff e9 b5 fd ff ff e8 83 57 d4 ff
RSP: 0018:ffff8880a98a7b10 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 1ffff11015314f64 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815b2446 RDI: ffffed1015314f54
RBP: ffff8880a98a7bc0 R08: ffff8880a98981c0 R09: ffff8880a9898ab0
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809fc9dcc0
R13: ffff8880a3ec8e40 R14: ffff88809fc9dd70 R15: dffffc0000000000
 rpc_proc_exit+0x3e/0x50 net/sunrpc/stats.c:335
 sunrpc_exit_net+0x187/0x2d0 net/sunrpc/sunrpc_syms.c:73
 ops_exit_list.isra.0+0xb0/0x160 net/core/net_namespace.c:153
 cleanup_net+0x3fb/0x960 net/core/net_namespace.c:552
 process_one_work+0x98e/0x1790 kernel/workqueue.c:2268
 worker_thread+0x98/0xe40 kernel/workqueue.c:2414
 kthread+0x357/0x430 kernel/kthread.c:254
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (27):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/05/15 22:52 linux-next 239d779dc062 051c49fe .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 22:52 linux-next 239d779dc062 051c49fe .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 22:52 linux-next 239d779dc062 051c49fe .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 11:01 linux-next 239d779dc062 3345130d .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 11:01 linux-next 239d779dc062 3345130d .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 11:01 linux-next 239d779dc062 3345130d .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 04:49 linux-next 239d779dc062 bd4e3ac7 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 04:49 linux-next 239d779dc062 bd4e3ac7 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/15 04:49 linux-next 239d779dc062 bd4e3ac7 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 19:46 linux-next 0a13f187b16a bd4e3ac7 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 19:46 linux-next 0a13f187b16a bd4e3ac7 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 19:46 linux-next 0a13f187b16a bd4e3ac7 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 06:33 linux-next 0a13f187b16a ada3c44c .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 06:33 linux-next 0a13f187b16a ada3c44c .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 06:33 linux-next 0a13f187b16a ada3c44c .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 04:50 linux-next 0a13f187b16a 7c305b44 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 04:50 linux-next 0a13f187b16a 7c305b44 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/14 04:50 linux-next 0a13f187b16a 7c305b44 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 19:20 linux-next 04c4b6775d34 7c305b44 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 19:20 linux-next 04c4b6775d34 7c305b44 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 19:20 linux-next 04c4b6775d34 7c305b44 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 06:42 linux-next 04c4b6775d34 16ab1e89 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 06:42 linux-next 04c4b6775d34 16ab1e89 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 06:42 linux-next 04c4b6775d34 16ab1e89 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 04:56 linux-next 04c4b6775d34 5f302c04 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 04:56 linux-next 04c4b6775d34 5f302c04 .config console log report ci-upstream-linux-next-kasan-gce-root
2019/05/13 04:56 linux-next 04c4b6775d34 5f302c04 .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.