Re: [PATCH v2 bpf] bpf: fix lockdep false positive in stackmap

2019-02-11 Thread Eric Dumazet
On Mon, Feb 11, 2019 at 7:39 AM Daniel Borkmann wrote: > > On 02/10/2019 09:52 PM, Alexei Starovoitov wrote: > > Lockdep warns about false positive: > > [ 11.211460] [ cut here ] > > [ 11.211936] DEBUG_LOCKS_WARN_ON(depth <= 0) > > [ 11.211985] WARNING: CPU: 0 PID: 14

Re: [PATCH v2 bpf] bpf: fix lockdep false positive in stackmap

2019-02-11 Thread Daniel Borkmann
On 02/10/2019 09:52 PM, Alexei Starovoitov wrote: > Lockdep warns about false positive: > [ 11.211460] [ cut here ] > [ 11.211936] DEBUG_LOCKS_WARN_ON(depth <= 0) > [ 11.211985] WARNING: CPU: 0 PID: 141 at ../kernel/locking/lockdep.c:3592 > lock_release+0x1ad/0x280 >

[PATCH v2 bpf] bpf: fix lockdep false positive in stackmap

2019-02-10 Thread Alexei Starovoitov
Lockdep warns about false positive: [ 11.211460] [ cut here ] [ 11.211936] DEBUG_LOCKS_WARN_ON(depth <= 0) [ 11.211985] WARNING: CPU: 0 PID: 141 at ../kernel/locking/lockdep.c:3592 lock_release+0x1ad/0x280 [ 11.213134] Modules linked in: [ 11.214954] RIP: 0010:loc