Date: Tue, 11 Feb 2020 22:14:17 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 244053] `dtrace -c` causes program dumps core after somewhere between (r357694, r357701] Message-ID: <bug-244053-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244053 Bug ID: 244053 Summary: `dtrace -c` causes program dumps core after somewhere between (r357694, r357701] Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: lwhsu@FreeBSD.org root@:~ # uname -a FreeBSD 13.0-CURRENT FreeBSD 13.0-CURRENT #0 r357694: Sun Feb 9 12:40:40 UTC 2020 root@FreeBSD-head-amd64-build.jail.ci.FreeBSD.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64 root@:~ # dtrace -n 'syscall:::entry { @[execname, probefunc] = count(); }' -c "echo hello" dtrace: description 'syscall:::entry ' matched 1130 probes dtrace: buffer size lowered to 1m dtrace: aggregation size lowered to 1m hello dtrace: pid 825 has exited dtrace close 1 dtrace fstat 1 dtrace open 1 dtrace thr_exit 1 echo cap_enter 1 echo exit 1 echo mmap 1 echo mprotect 1 echo writev 1 dtrace _umtx_op 2 dtrace mmap 3 echo cap_fcntls_limit 3 echo cap_ioctls_limit 3 echo cap_rights_limit 3 dtrace wait4 4 dtrace __sysctl 5 dtrace write 6 echo sigprocmask 7 dtrace sigaction 10 dtrace __sysctlbyname 17 dtrace sigprocmask 20 dtrace ptrace 22 dtrace ioctl 41 root@:~ # uname -a FreeBSD 13.0-CURRENT FreeBSD 13.0-CURRENT #0 r357701: Sun Feb 9 13:32:35 UTC 2020 root@FreeBSD-head-amd64-build.jail.ci.FreeBSD.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC amd64 root@:~ # dtrace -n 'syscall:::entry { @[execname, probefunc] = count(); }' -c "echo hello" dtrace: failed to control pid 800: process died from signal 11 root@:~ # dtrace -n 'syscall:::entry { @[execname, probefunc] = count(); }' -c "ls /" dtrace: failed to control pid 790: process died from signal 11 root@:~ # lldb /usr/lib/debug/bin/ls.debug -c ls.core (lldb) target create "/usr/lib/debug/bin/ls.debug" --core "ls.core" Core file '/root/ls.core' (x86_64) was loaded. (lldb) bt * thread #1, name = 'ls', stop reason = signal SIGSEGV * frame #0: 0x0000000000000000 -- You are receiving this mail because: You are the assignee for the bug.help
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