Re: [PATCH bpf v3] bpf/tracing: fix a deadlock in perf_event_detach_bpf_prog

2018-04-10 Thread Yonghong Song
On 4/10/18 1:54 AM, Daniel Borkmann wrote: On 04/10/2018 09:21 AM, Yonghong Song wrote: syzbot reported a possible deadlock in perf_event_detach_bpf_prog. The error details: == WARNING: possible circular locking dependency detected 4

Re: [PATCH bpf v3] bpf/tracing: fix a deadlock in perf_event_detach_bpf_prog

2018-04-10 Thread Daniel Borkmann
On 04/10/2018 09:21 AM, Yonghong Song wrote: > syzbot reported a possible deadlock in perf_event_detach_bpf_prog. > The error details: > == > WARNING: possible circular locking dependency detected > 4.16.0-rc7+ #3 Not tainted > ---

[PATCH bpf v3] bpf/tracing: fix a deadlock in perf_event_detach_bpf_prog

2018-04-10 Thread Yonghong Song
syzbot reported a possible deadlock in perf_event_detach_bpf_prog. The error details: == WARNING: possible circular locking dependency detected 4.16.0-rc7+ #3 Not tainted -- syz-executo