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* [syzbot] WARNING in remove_proc_entry (3)
@ 2021-07-17 17:02 syzbot
  2021-08-02 22:27 ` J. Bruce Fields
  0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2021-07-17 17:02 UTC (permalink / raw)
  To: anna.schumaker, bfields, chuck.lever, colin.king, davem, kuba,
	linux-kernel, linux-nfs,, netdev, syzkaller-bugs,


syzbot found the following issue on:

HEAD commit:    7fef2edf7cc7 sd: don't mess with SD_MINORS for CONFIG_DEBU..
git tree:       upstream
console output:
kernel config:
dashboard link:

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:

bond0 (unregistering): (slave bond_slave_0): Releasing backup interface
bond0 (unregistering): Released all slaves
------------[ cut here ]------------
name 'use-gss-proxy'
WARNING: CPU: 0 PID: 7951 at fs/proc/generic.c:709 remove_proc_entry+0x389/0x460 fs/proc/generic.c:709
Modules linked in:
CPU: 0 PID: 7951 Comm: kworker/u4:2 Tainted: G        W         5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x389/0x460 fs/proc/generic.c:709
Code: e9 6d fe ff ff e8 f7 d9 85 ff 48 c7 c7 20 d4 b3 8b e8 fb 96 3d 07 e8 e6 d9 85 ff 4c 89 e6 48 c7 c7 00 2a 9c 89 e8 92 86 f8 06 <0f> 0b e9 a4 fe ff ff e8 cb d9 85 ff 48 8d bd d8 00 00 00 48 b8 00
RSP: 0018:ffffc9000c8efb48 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 1ffff9200191df6b RCX: 0000000000000000
RDX: ffff8880341121c0 RSI: ffffffff815c9ca5 RDI: fffff5200191df5b
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815c3aae R11: 0000000000000000 R12: ffffffff8aa28e40
R13: dffffc0000000000 R14: ffff888000102000 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38761a8740 CR3: 000000002c23a000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 destroy_use_gss_proxy_proc_entry net/sunrpc/auth_gss/svcauth_gss.c:1504 [inline]
 gss_svc_shutdown_net+0x196/0x8c0 net/sunrpc/auth_gss/svcauth_gss.c:1992
 ops_exit_list+0xb0/0x160 net/core/net_namespace.c:175
 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:595
 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276
 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295

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