On Tue, 2023-07-25 at 17:15 -0300, Arnaldo Carvalho de Melo wrote: > Hi Marco, Peter, > > I got a report that 'perf test sigtrap' test failed on a > PREEMPT_RT_FULL kernel, one that had up to: > > commit 97ba62b278674293762c3d91f724f1bb922f04e0 > Author: Marco Elver <elver@xxxxxxxxxx> > Date: Thu Apr 8 12:36:01 2021 +0200 > > perf: Add support for SIGTRAP on perf events > ... > [ 52.848925] BUG: scheduling while atomic: perf/6549/0x00000002 Had bf9ad37dc8a not been reverted due to insufficient beauty, you could trivially make the sigtrap test a happy camper (wart tested in tip-rt). -Mike @@ -1829,6 +1869,9 @@ int send_sig_perf(void __user *addr, u32 TRAP_PERF_FLAG_ASYNC : 0; + if (force_sig_delayed(&info, current)) + return 0; + return send_sig_info(info.si_signo, &info, current); }
