Re: [PATCH v2 2/4] perf,uprobes: fix user stack traces in the presence of pending uretprobes

On Mon, Jun 24, 2024 at 5:39 PM Masami Hiramatsu wrote: > > On Mon, 24 Jun 2024 13:32:35 -0700 > Andrii Nakryiko wrote: > > > On Mon, Jun 17, 2024 at 3:37 PM Andrii Nakryiko > > wrote: > > > > > > On Tue, Jun 4, 2024 at 10:16 AM Andrii Nakryiko > > > wrote: > > > > > > > > On Tue, Jun 4, 2024

Re: [PATCH v2 2/4] perf,uprobes: fix user stack traces in the presence of pending uretprobes

On Mon, 24 Jun 2024 13:32:35 -0700 Andrii Nakryiko wrote: > On Mon, Jun 17, 2024 at 3:37 PM Andrii Nakryiko > wrote: > > > > On Tue, Jun 4, 2024 at 10:16 AM Andrii Nakryiko > > wrote: > > > > > > On Tue, Jun 4, 2024 at 7:13 AM Masami Hiramatsu > > > wrote: > > > > > > > > On Tue, 21 May 2024

Re: [PATCH v2 2/4] perf,uprobes: fix user stack traces in the presence of pending uretprobes

On Mon, Jun 17, 2024 at 3:37 PM Andrii Nakryiko wrote: > > On Tue, Jun 4, 2024 at 10:16 AM Andrii Nakryiko > wrote: > > > > On Tue, Jun 4, 2024 at 7:13 AM Masami Hiramatsu wrote: > > > > > > On Tue, 21 May 2024 18:38:43 -0700 > > > Andrii Nakryiko wrote: > > > > > > > When kernel has pending

Re: [PATCH v2 2/4] perf,uprobes: fix user stack traces in the presence of pending uretprobes

On Tue, Jun 4, 2024 at 10:16 AM Andrii Nakryiko wrote: > > On Tue, Jun 4, 2024 at 7:13 AM Masami Hiramatsu wrote: > > > > On Tue, 21 May 2024 18:38:43 -0700 > > Andrii Nakryiko wrote: > > > > > When kernel has pending uretprobes installed, it hijacks original user > > > function return address

Re: [PATCH v2 2/4] perf,uprobes: fix user stack traces in the presence of pending uretprobes

On Tue, Jun 4, 2024 at 7:13 AM Masami Hiramatsu wrote: > > On Tue, 21 May 2024 18:38:43 -0700 > Andrii Nakryiko wrote: > > > When kernel has pending uretprobes installed, it hijacks original user > > function return address on the stack with a uretprobe trampoline > > address. There could be

Re: [PATCH v2 2/4] perf,uprobes: fix user stack traces in the presence of pending uretprobes

On Tue, 21 May 2024 18:38:43 -0700 Andrii Nakryiko wrote: > When kernel has pending uretprobes installed, it hijacks original user > function return address on the stack with a uretprobe trampoline > address. There could be multiple such pending uretprobes (either on > different user functions

[PATCH v2 2/4] perf,uprobes: fix user stack traces in the presence of pending uretprobes

When kernel has pending uretprobes installed, it hijacks original user function return address on the stack with a uretprobe trampoline address. There could be multiple such pending uretprobes (either on different user functions or on the same recursive one) at any given time within the same task.