Re: [PATCH 1/3 v4 bpf-next] bpf: save correct stopping point in file seq iteration.

2020-12-23 Thread Daniel Borkmann
On 12/18/20 10:01 PM, Andrii Nakryiko wrote: On Fri, Dec 18, 2020 at 12:47 PM Jonathan Lemon wrote: From: Jonathan Lemon On some systems, some variant of the following splat is repeatedly seen. The common factor in all traces seems to be the entry point to task_file_seq_next(). With the pa

Re: [PATCH 1/3 v4 bpf-next] bpf: save correct stopping point in file seq iteration.

2020-12-18 Thread Andrii Nakryiko
On Fri, Dec 18, 2020 at 12:47 PM Jonathan Lemon wrote: > > From: Jonathan Lemon > > On some systems, some variant of the following splat is > repeatedly seen. The common factor in all traces seems > to be the entry point to task_file_seq_next(). With the > patch, all warnings go away. > > r

[PATCH 1/3 v4 bpf-next] bpf: save correct stopping point in file seq iteration.

2020-12-18 Thread Jonathan Lemon
From: Jonathan Lemon On some systems, some variant of the following splat is repeatedly seen. The common factor in all traces seems to be the entry point to task_file_seq_next(). With the patch, all warnings go away. rcu: INFO: rcu_sched self-detected stall on CPU rcu: \x0926-: (20