mirror of
https://git.proxmox.com/git/mirror_ubuntu-kernels.git
synced 2026-01-06 19:02:48 +00:00
c66a36af7b
It caused some troubles when a lock inside kmalloc is contended because task local storage would allocate memory using kmalloc. It'd create a recusion and even crash in my system. There could be a couple of workarounds but I think the simplest one is to use a pre-allocated hash map. We could fix the task local storage to use the safe BPF allocator, but it takes time so let's change this until it happens actually. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Blake Jones <blakejones@google.com> Cc: Chris Li <chriscli@google.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <song@kernel.org> Cc: bpf@vger.kernel.org Link: https://lore.kernel.org/r/20221118190109.1512674-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
||
|---|---|---|
| .. | ||
| .gitignore | ||
| bperf_cgroup.bpf.c | ||
| bperf_follower.bpf.c | ||
| bperf_leader.bpf.c | ||
| bperf_u.h | ||
| bpf_prog_profiler.bpf.c | ||
| func_latency.bpf.c | ||
| kwork_trace.bpf.c | ||
| lock_contention.bpf.c | ||
| off_cpu.bpf.c | ||