Re: BUG: MAX_STACK_TRACE_ENTRIES too low in tipc_topsrv_exit_net
On Thu, Aug 22, 2019 at 5:05 AM Eric Biggers wrote: > > On Mon, Aug 19, 2019 at 05:22:07AM -0700, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit:5181b473 net: phy: realtek: add NBase-T PHY auto-detection > > git tree: net-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=156b731c60 > > kernel config: https://syzkaller.appspot.com/x/.config?x=d4cf1ffb87d590d7 > > dashboard link: https://syzkaller.appspot.com/bug?extid=5f97459a05652f579f6c > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > > > Unfortunately, I don't have any reproducer for this crash yet. > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > Reported-by: syzbot+5f97459a05652f579...@syzkaller.appspotmail.com > > > > BUG: MAX_STACK_TRACE_ENTRIES too low! > > turning off the locking correctness validator. > > CPU: 0 PID: 2581 Comm: kworker/u4:4 Not tainted 5.3.0-rc3+ #132 > > 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 > > save_trace kernel/locking/lockdep.c:473 [inline] > > save_trace.isra.0.cold+0x14/0x19 kernel/locking/lockdep.c:458 > > mark_lock+0x3db/0x11e0 kernel/locking/lockdep.c:3583 > > mark_usage kernel/locking/lockdep.c:3517 [inline] > > __lock_acquire+0x538/0x4c30 kernel/locking/lockdep.c:3834 > > lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4412 > > flush_workqueue+0x126/0x14b0 kernel/workqueue.c:2774 > > drain_workqueue+0x1b4/0x470 kernel/workqueue.c:2939 > > destroy_workqueue+0x21/0x6c0 kernel/workqueue.c:4320 > > tipc_topsrv_work_stop net/tipc/topsrv.c:636 [inline] > > tipc_topsrv_stop net/tipc/topsrv.c:694 [inline] > > tipc_topsrv_exit_net+0x3fe/0x5d8 net/tipc/topsrv.c:706 > > ops_exit_list.isra.0+0xaa/0x150 net/core/net_namespace.c:172 > > cleanup_net+0x4e2/0xa70 net/core/net_namespace.c:594 > > process_one_work+0x9af/0x1740 kernel/workqueue.c:2269 > > worker_thread+0x98/0xe40 kernel/workqueue.c:2415 > > kthread+0x361/0x430 kernel/kthread.c:255 > > ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 > > kobject: 'rx-0' (0e2c91cd): kobject_cleanup, parent 2003fefb > > kobject: 'rx-0' (0e2c91cd): auto cleanup 'remove' event > > kobject: 'rx-0' (0e2c91cd): kobject_uevent_env > > kobject: 'rx-0' (0e2c91cd): kobject_uevent_env: uevent_suppress > > caused the event to drop! > > kobject: 'rx-0' (0e2c91cd): auto cleanup kobject_del > > kobject: 'rx-0' (0e2c91cd): calling ktype release > > kobject: 'rx-0': free name > > kobject: 'tx-0' (58b6f726): kobject_cleanup, parent 2003fefb > > kobject: 'tx-0' (58b6f726): auto cleanup 'remove' event > > kobject: 'tx-0' (58b6f726): kobject_uevent_env > > kobject: 'tx-0' (58b6f726): kobject_uevent_env: uevent_suppress > > caused the event to drop! > > kobject: 'tx-0' (58b6f726): auto cleanup kobject_del > > kobject: 'tx-0' (58b6f726): calling ktype release > > kobject: 'tx-0': free name > > kobject: 'queues' (2003fefb): kobject_cleanup, parent > > 9c061a32 > > kobject: 'queues' (2003fefb): calling ktype release > > kobject: 'queues' (2003fefb): kset_release > > kobject: 'queues': free name > > kobject: 'ip6gre0' (18a24d65): kobject_uevent_env > > kobject: 'ip6gre0' (18a24d65): kobject_uevent_env: uevent_suppress > > caused the event to drop! > > kobject: 'rx-0' (940b22b0): kobject_cleanup, parent 05a1fc3a > > kobject: 'rx-0' (940b22b0): auto cleanup 'remove' event > > kobject: 'rx-0' (940b22b0): kobject_uevent_env > > kobject: 'rx-0' (940b22b0): kobject_uevent_env: uevent_suppress > > caused the event to drop! > > kobject: 'rx-0' (940b22b0): auto cleanup kobject_del > > kobject: 'rx-0' (940b22b0): calling ktype release > > kobject: 'rx-0': free name > > kobject: 'tx-0' (278e85e2): kobject_cleanup, parent 05a1fc3a > > kobject: 'tx-0' (278e85e2): auto cleanup 'remove' event > > kobject: 'tx-0' (278e85e2): kobject_uevent_env > > kobject: 'tx-0' (278e85e2): kobject_uevent_env: uevent_suppress > > caused the event to drop! > > kobject: 'tx-0' (278e85e2): auto cleanup kobject_del > > kobject: 'tx-0' (278e85e2): calling ktype release > > kobject: 'tx-0': free name > > kobject: 'queues' (05a1fc3a): kobject_cleanup, parent > > 9c061a32 > > kobject: 'queues' (05a1fc3a): calling ktype release > > kobject: 'queues' (05a1fc3a): kset_release > > kobject: 'queues': free name > > kobject: 'ip6gre0' (c78b955b): kobject_uevent_env > > kobject: 'ip6gre0' (c78b955b): kobject_uevent_env: uevent_suppress > > caused the event to drop! > > kobject: 'rx-0'
Re: BUG: MAX_STACK_TRACE_ENTRIES too low in tipc_topsrv_exit_net
On Mon, Aug 19, 2019 at 05:22:07AM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:5181b473 net: phy: realtek: add NBase-T PHY auto-detection > git tree: net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=156b731c60 > kernel config: https://syzkaller.appspot.com/x/.config?x=d4cf1ffb87d590d7 > dashboard link: https://syzkaller.appspot.com/bug?extid=5f97459a05652f579f6c > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+5f97459a05652f579...@syzkaller.appspotmail.com > > BUG: MAX_STACK_TRACE_ENTRIES too low! > turning off the locking correctness validator. > CPU: 0 PID: 2581 Comm: kworker/u4:4 Not tainted 5.3.0-rc3+ #132 > 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 > save_trace kernel/locking/lockdep.c:473 [inline] > save_trace.isra.0.cold+0x14/0x19 kernel/locking/lockdep.c:458 > mark_lock+0x3db/0x11e0 kernel/locking/lockdep.c:3583 > mark_usage kernel/locking/lockdep.c:3517 [inline] > __lock_acquire+0x538/0x4c30 kernel/locking/lockdep.c:3834 > lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4412 > flush_workqueue+0x126/0x14b0 kernel/workqueue.c:2774 > drain_workqueue+0x1b4/0x470 kernel/workqueue.c:2939 > destroy_workqueue+0x21/0x6c0 kernel/workqueue.c:4320 > tipc_topsrv_work_stop net/tipc/topsrv.c:636 [inline] > tipc_topsrv_stop net/tipc/topsrv.c:694 [inline] > tipc_topsrv_exit_net+0x3fe/0x5d8 net/tipc/topsrv.c:706 > ops_exit_list.isra.0+0xaa/0x150 net/core/net_namespace.c:172 > cleanup_net+0x4e2/0xa70 net/core/net_namespace.c:594 > process_one_work+0x9af/0x1740 kernel/workqueue.c:2269 > worker_thread+0x98/0xe40 kernel/workqueue.c:2415 > kthread+0x361/0x430 kernel/kthread.c:255 > ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 > kobject: 'rx-0' (0e2c91cd): kobject_cleanup, parent 2003fefb > kobject: 'rx-0' (0e2c91cd): auto cleanup 'remove' event > kobject: 'rx-0' (0e2c91cd): kobject_uevent_env > kobject: 'rx-0' (0e2c91cd): kobject_uevent_env: uevent_suppress > caused the event to drop! > kobject: 'rx-0' (0e2c91cd): auto cleanup kobject_del > kobject: 'rx-0' (0e2c91cd): calling ktype release > kobject: 'rx-0': free name > kobject: 'tx-0' (58b6f726): kobject_cleanup, parent 2003fefb > kobject: 'tx-0' (58b6f726): auto cleanup 'remove' event > kobject: 'tx-0' (58b6f726): kobject_uevent_env > kobject: 'tx-0' (58b6f726): kobject_uevent_env: uevent_suppress > caused the event to drop! > kobject: 'tx-0' (58b6f726): auto cleanup kobject_del > kobject: 'tx-0' (58b6f726): calling ktype release > kobject: 'tx-0': free name > kobject: 'queues' (2003fefb): kobject_cleanup, parent > 9c061a32 > kobject: 'queues' (2003fefb): calling ktype release > kobject: 'queues' (2003fefb): kset_release > kobject: 'queues': free name > kobject: 'ip6gre0' (18a24d65): kobject_uevent_env > kobject: 'ip6gre0' (18a24d65): kobject_uevent_env: uevent_suppress > caused the event to drop! > kobject: 'rx-0' (940b22b0): kobject_cleanup, parent 05a1fc3a > kobject: 'rx-0' (940b22b0): auto cleanup 'remove' event > kobject: 'rx-0' (940b22b0): kobject_uevent_env > kobject: 'rx-0' (940b22b0): kobject_uevent_env: uevent_suppress > caused the event to drop! > kobject: 'rx-0' (940b22b0): auto cleanup kobject_del > kobject: 'rx-0' (940b22b0): calling ktype release > kobject: 'rx-0': free name > kobject: 'tx-0' (278e85e2): kobject_cleanup, parent 05a1fc3a > kobject: 'tx-0' (278e85e2): auto cleanup 'remove' event > kobject: 'tx-0' (278e85e2): kobject_uevent_env > kobject: 'tx-0' (278e85e2): kobject_uevent_env: uevent_suppress > caused the event to drop! > kobject: 'tx-0' (278e85e2): auto cleanup kobject_del > kobject: 'tx-0' (278e85e2): calling ktype release > kobject: 'tx-0': free name > kobject: 'queues' (05a1fc3a): kobject_cleanup, parent > 9c061a32 > kobject: 'queues' (05a1fc3a): calling ktype release > kobject: 'queues' (05a1fc3a): kset_release > kobject: 'queues': free name > kobject: 'ip6gre0' (c78b955b): kobject_uevent_env > kobject: 'ip6gre0' (c78b955b): kobject_uevent_env: uevent_suppress > caused the event to drop! > kobject: 'rx-0' (0fa7c1d1): kobject_cleanup, parent d264d5b4 > kobject: 'rx-0' (0fa7c1d1): auto cleanup 'remove' event > kobject: 'rx-0' (0fa7c1d1): kobject_uevent_env > kobject: 'rx-0' (0fa7c1d1): kobject_uevent_env:
BUG: MAX_STACK_TRACE_ENTRIES too low in tipc_topsrv_exit_net
Hello, syzbot found the following crash on: HEAD commit:5181b473 net: phy: realtek: add NBase-T PHY auto-detection git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=156b731c60 kernel config: https://syzkaller.appspot.com/x/.config?x=d4cf1ffb87d590d7 dashboard link: https://syzkaller.appspot.com/bug?extid=5f97459a05652f579f6c compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+5f97459a05652f579...@syzkaller.appspotmail.com BUG: MAX_STACK_TRACE_ENTRIES too low! turning off the locking correctness validator. CPU: 0 PID: 2581 Comm: kworker/u4:4 Not tainted 5.3.0-rc3+ #132 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 save_trace kernel/locking/lockdep.c:473 [inline] save_trace.isra.0.cold+0x14/0x19 kernel/locking/lockdep.c:458 mark_lock+0x3db/0x11e0 kernel/locking/lockdep.c:3583 mark_usage kernel/locking/lockdep.c:3517 [inline] __lock_acquire+0x538/0x4c30 kernel/locking/lockdep.c:3834 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4412 flush_workqueue+0x126/0x14b0 kernel/workqueue.c:2774 drain_workqueue+0x1b4/0x470 kernel/workqueue.c:2939 destroy_workqueue+0x21/0x6c0 kernel/workqueue.c:4320 tipc_topsrv_work_stop net/tipc/topsrv.c:636 [inline] tipc_topsrv_stop net/tipc/topsrv.c:694 [inline] tipc_topsrv_exit_net+0x3fe/0x5d8 net/tipc/topsrv.c:706 ops_exit_list.isra.0+0xaa/0x150 net/core/net_namespace.c:172 cleanup_net+0x4e2/0xa70 net/core/net_namespace.c:594 process_one_work+0x9af/0x1740 kernel/workqueue.c:2269 worker_thread+0x98/0xe40 kernel/workqueue.c:2415 kthread+0x361/0x430 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 kobject: 'rx-0' (0e2c91cd): kobject_cleanup, parent 2003fefb kobject: 'rx-0' (0e2c91cd): auto cleanup 'remove' event kobject: 'rx-0' (0e2c91cd): kobject_uevent_env kobject: 'rx-0' (0e2c91cd): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0e2c91cd): auto cleanup kobject_del kobject: 'rx-0' (0e2c91cd): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (58b6f726): kobject_cleanup, parent 2003fefb kobject: 'tx-0' (58b6f726): auto cleanup 'remove' event kobject: 'tx-0' (58b6f726): kobject_uevent_env kobject: 'tx-0' (58b6f726): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (58b6f726): auto cleanup kobject_del kobject: 'tx-0' (58b6f726): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (2003fefb): kobject_cleanup, parent 9c061a32 kobject: 'queues' (2003fefb): calling ktype release kobject: 'queues' (2003fefb): kset_release kobject: 'queues': free name kobject: 'ip6gre0' (18a24d65): kobject_uevent_env kobject: 'ip6gre0' (18a24d65): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (940b22b0): kobject_cleanup, parent 05a1fc3a kobject: 'rx-0' (940b22b0): auto cleanup 'remove' event kobject: 'rx-0' (940b22b0): kobject_uevent_env kobject: 'rx-0' (940b22b0): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (940b22b0): auto cleanup kobject_del kobject: 'rx-0' (940b22b0): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (278e85e2): kobject_cleanup, parent 05a1fc3a kobject: 'tx-0' (278e85e2): auto cleanup 'remove' event kobject: 'tx-0' (278e85e2): kobject_uevent_env kobject: 'tx-0' (278e85e2): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'tx-0' (278e85e2): auto cleanup kobject_del kobject: 'tx-0' (278e85e2): calling ktype release kobject: 'tx-0': free name kobject: 'queues' (05a1fc3a): kobject_cleanup, parent 9c061a32 kobject: 'queues' (05a1fc3a): calling ktype release kobject: 'queues' (05a1fc3a): kset_release kobject: 'queues': free name kobject: 'ip6gre0' (c78b955b): kobject_uevent_env kobject: 'ip6gre0' (c78b955b): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0fa7c1d1): kobject_cleanup, parent d264d5b4 kobject: 'rx-0' (0fa7c1d1): auto cleanup 'remove' event kobject: 'rx-0' (0fa7c1d1): kobject_uevent_env kobject: 'rx-0' (0fa7c1d1): kobject_uevent_env: uevent_suppress caused the event to drop! kobject: 'rx-0' (0fa7c1d1): auto cleanup kobject_del kobject: 'rx-0' (0fa7c1d1): calling ktype release kobject: 'rx-0': free name kobject: 'tx-0' (0f66c80c):
