On Tue, Nov 24, 2009 at 09:01:27PM +0100, Oleg Nesterov wrote: > Hello. > > This is the new iteration of Roland's utrace patch, this time > with "rewrite-ptrace-via-utrace" + cleanups in utrace core. > > 1-7 are already in -mm tree, I am sending them to simplify the > review. > > 8-12 don not change the behaviour, simple preparations. > > 13-14 add utrace-ptrace and utrace
Oleg, I ran the ptrace-tests testsuite [1] on powerpc on the vanilla ptrace and then with ptrace/utrace. The results for ptrace/utrace look better :-) All tests are 'make check xcheck'. Ananth [1] cvs -d :pserver:anoncvs:anon...@sources.redhat.com:/cvs/systemtap co ptrace-tests --------- Vanilla ptrace: PASS: ptrace-on-job-control-stopped PASS: attach-wait-on-stopped PASS: detach-can-signal PASS: attach-into-signal PASS: attach-sigcont-wait PASS: sa-resethand-on-cont-signal PASS: ptrace_cont-defeats-sigblock PASS: ptrace-cont-sigstop-detach PASS: ptrace_event_clone PASS: tif-syscall-trace-after-detach PASS: event-exit-proc-maps PASS: event-exit-proc-environ SKIP: x86_64-ia32-gs SKIP: x86_64-gsbase PASS: powerpc-altivec PASS: peekpokeusr PASS: watchpoint PASS: block-step PASS: step-jump-cont SKIP: step-jump-cont-strict PASS: ppc-dabr-race PASS: signal-loss PASS: step-into-handler SKIP: user-area-access PASS: user-regs-peekpoke PASS: erestartsys SKIP: erestart-debugger SKIP: step-to-breakpoint errno 14 (Bad address) syscall-reset: syscall-reset.c:95: main: Assertion `(*__errno_location ()) == 38' failed. unexpected child status 67f FAIL: syscall-reset PASS: reparent-zombie PASS: step-simple SKIP: step-through-sigret PASS: stop-attach-then-wait FAIL: detach-stopped PASS: detach-stopped-rhel5 PASS: clone-multi-ptrace PASS: clone-ptrace PASS: o_tracevfork PASS: o_tracevforkdone PASS: detach-parting-signal PASS: detach-sigkill-race PASS: waitpid-double-report PASS: o_tracevfork-parent PASS: stopped-detach-sleeping FAIL: stopped-attach-transparency SKIP: erestartsys-trap SKIP: highmem-debugger PASS: sigint-before-syscall-exit SKIP: syscall-from-clone step-from-clone: step-from-clone.c:195: main: Assertion `(status >> 8) == 5' failed. step-from-clone: step-from-clone.c:119: handler_fail: Assertion `0' failed. /bin/sh: line 5: 19825 Aborted ${dir}$tst FAIL: step-from-clone step-fork: step-fork.c:56: handler_fail: Assertion `0' failed. /bin/sh: line 5: 19832 Aborted ${dir}$tst FAIL: step-fork ======================================== 5 of 41 tests failed (10 tests were not run) Please report to utrace-devel@redhat.com ======================================== make[3]: *** [check-TESTS] Error 1 make[3]: Leaving directory `/home/ananth/ptrace-tests/tests' make[2]: *** [check-am] Error 2 make[2]: Leaving directory `/home/ananth/ptrace-tests/tests' make[1]: *** [check] Error 2 make[1]: Leaving directory `/home/ananth/ptrace-tests/tests' make: *** [check-recursive] Error 1 --------- ptrace over utrace: PASS: ptrace-on-job-control-stopped PASS: attach-wait-on-stopped PASS: detach-can-signal PASS: attach-into-signal PASS: attach-sigcont-wait PASS: sa-resethand-on-cont-signal PASS: ptrace_cont-defeats-sigblock PASS: ptrace-cont-sigstop-detach PASS: ptrace_event_clone PASS: tif-syscall-trace-after-detach PASS: event-exit-proc-maps PASS: event-exit-proc-environ SKIP: x86_64-ia32-gs SKIP: x86_64-gsbase PASS: powerpc-altivec PASS: peekpokeusr PASS: watchpoint PASS: block-step PASS: step-jump-cont SKIP: step-jump-cont-strict PASS: ppc-dabr-race PASS: signal-loss PASS: step-into-handler SKIP: user-area-access PASS: user-regs-peekpoke PASS: erestartsys SKIP: erestart-debugger SKIP: step-to-breakpoint errno 14 (Bad address) syscall-reset: syscall-reset.c:95: main: Assertion `(*__errno_location ()) == 38' failed. unexpected child status 67f FAIL: syscall-reset PASS: reparent-zombie PASS: step-simple SKIP: step-through-sigret PASS: stop-attach-then-wait PASS: detach-stopped PASS: detach-stopped-rhel5 PASS: clone-multi-ptrace PASS: clone-ptrace PASS: o_tracevfork PASS: o_tracevforkdone PASS: detach-parting-signal PASS: detach-sigkill-race PASS: waitpid-double-report PASS: o_tracevfork-parent PASS: stopped-detach-sleeping PASS: stopped-attach-transparency SKIP: erestartsys-trap SKIP: highmem-debugger PASS: sigint-before-syscall-exit SKIP: syscall-from-clone SKIP: step-from-clone step-fork: step-fork.c:56: handler_fail: Assertion `0' failed. /bin/sh: line 5: 24803 Aborted ${dir}$tst FAIL: step-fork ======================================== 2 of 40 tests failed (11 tests were not run) Please report to utrace-devel@redhat.com ======================================== make[3]: *** [check-TESTS] Error 1 make[3]: Leaving directory `/home/ananth/ptrace-tests/tests' make[2]: *** [check-am] Error 2 make[2]: Leaving directory `/home/ananth/ptrace-tests/tests' make[1]: *** [check] Error 2 make[1]: Leaving directory `/home/ananth/ptrace-tests/tests' make: *** [check-recursive] Error 1