| Summary: | segfault when building kernel. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Dave Jones <davej> |
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 20 | CC: | jakub, law, pfrields |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-12-13 00:55:57 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
just realised it segv's with *any* C file.
$ gdb /usr/libexec/gcc/x86_64-redhat-linux/4.8.2/cc1 core.24252
Reading symbols from /usr/libexec/gcc/x86_64-redhat-linux/4.8.2/cc1...Reading symbols from /usr/lib/debug/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/cc1.debug...done.
done.
[New LWP 24252]
Core was generated by `/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/cc1 -quiet test.c -quiet -dumpbase t'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00000000003f4c10 in ?? ()
(gdb) bt
#0 0x00000000003f4c10 in ?? ()
#1 0x0000000000df937d in __libc_csu_init ()
#2 0x00007f8449146cf5 in __libc_start_main (main=0x77fbe0 <main(int, char**)>, argc=12, argv=0x7fffcce7f558, init=0xdf9330 <__libc_csu_init>, fini=<optimized out>, rtld_fini=<optimized out>,
stack_end=0x7fffcce7f548) at libc-start.c:244
#3 0x0000000000ce845d in _start ()
Bizarre.
The root disk on this machine is failing, so maybe some shared library got corrupted, but somehow only gcc is affected.
it's getting reinstalled on a new disk tomorrow, so I'll just assume this is bad hardware related.
|
There's a check in the kernel build for presence of -fstack-protector (that arg is unrelated). The C code that it passes seems to introduce a segv whether -fstack-protect is passed or not.. libgcc-4.8.2-1.fc20.x86_64 gcc-c++-4.8.2-1.fc20.x86_64 gcc-4.8.2-1.fc20.x86_64 $ cat test.c int foo(void) { char X[200]; return 3; } $ gcc test.c gcc: internal compiler error: Segmentation fault (program cc1) Please submit a full bug report, with preprocessed source if appropriate. See <http://bugzilla.redhat.com/bugzilla> for instructions.