Bug 151262
| Summary: | random user space segfaults with exec-shield-randomize | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Harald Hoyer <harald> |
| Component: | kernel | Assignee: | Dave Jones <davej> |
| Status: | CLOSED DUPLICATE | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | CC: | hansecke, jakub, mingo, mishu, orion, pfrields, rcoker, wtogami, zing |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-05-08 01:50:13 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 136450 | ||
problem with gcc, glibc or kernel?? ok, forget the -fstack-check ntpd compiled with gcc32, same symptoms... *** Bug 153271 has been marked as a duplicate of this bug. *** What arch? For me it's Intel, a P4. model name : Intel(R) Pentium(R) 4 CPU 3.00GHz I'm seeing a lot of ntpd startup failures on FC3 and ntp-4.2.0.a.20040617-4
random, e.g.:
uname({sys="Linux", node="cynosure", ...}) = 0
gettimeofday({1114538224, 941201}, NULL) = 0
gettimeofday({1114538224, 941911}, NULL) = 0
gettimeofday({1114538224, 942277}, NULL) = 0
gettimeofday({1114538224, 942659}, NULL) = 0
gettimeofday({1114538224, 943019}, NULL) = 0
gettimeofday({1114538224, 943393}, NULL) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
close(4) = 0
rt_sigaction(SIGSYS, {0xc5b3a0, [], SA_RESTORER, 0x1548c8}, {SIG_DFL}, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8) = 0
adjtimex({modes=61, offset=-1162, freq=5172136, maxerror=16, esterror=16,
status=64, constant=0, precision=1, tolerance=33554432, time={1114538247,
657822}}) = 5
rt_sigaction(SIGSYS, {SIG_DFL}, NULL, 8) = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
Can someone verify if this is the same issue as Bug 154759 which affects FC3 with 2.6.11 kernel? Looks like it to me. Sorry about that. *** This bug has been marked as a duplicate of 154759 *** |
$ uname -r 2.6.11-1.1177_FC4smp ntpd randomly segfaults, compiled with the default RPM_OPT_FLAGS... turning off exec-shield-randomize cures the segfaults valgrind, efence do not show anything wrong.. a small test app: int main(int argc, char **argv) { return 0; } compiled with gcc4 and -fstack-check gcc -O2 -Wall -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -m32 -march=i386 -mtune=pentium4 -g -DDEBUG -D_FORTIFYSOURCE=2 -Wall -Wall -Wcast-qual -Wmissing-prototypes -Wpointer-arith -Wshadow -Wstrict-prototypes -fstack-check -o main main.c segfaults also randomly with exec-shield-randomize