Bug 155233
| Summary: | Core dumps broken on rhel3u3 / ia64 | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 3 | Reporter: | Johan Walles <johan.walles> |
| Component: | kernel | Assignee: | Jason Baron <jbaron> |
| Status: | CLOSED WORKSFORME | QA Contact: | Brian Brock <bbrock> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 3.0 | CC: | anderson, knoel, peterm, petrides, sta_larsen |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | ia64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-04-19 15:51:38 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: | |||
Same thing with (ie no 'volatile'):
void breakage()
{
*(int*)0=0;
}
For any BEA folks reading this, this is CR221542. This test case worked fine for me on the latest RHEL3 bits: * GNU gdb Red Hat Linux (6.3.0.0-0.30rh) * kernel - 2.4.21-31.EL When will the latest RHEL3 bits become part of an update? Hello, Johan. RHEL3 U5 is currently scheduled for official release on 11-May-2005. The RHN beta channels have the 2.4.21-31.EL kernel right now (and will soon get the -32.EL kernel that was respun on Friday). Jason will determine whether the problem was fixed in U4 or U5. Another thing, can you confirm that it was an SMP ia64 system that you tried this on? Just want to make sure. yes, i tried this on an smp ia64 system. Have you been able to repro on an RHEL3u3 system? It would be good to know whether you can confirm that this has been fixed, or whether you simply cannot reproduce it (for whatever reason). |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20041013 Firefox/0.9.3 (Ubuntu) Description of problem: I'm unable to get a stack trace out of a core file generated on rhel3u3 / ia64. Version-Release number of selected component (if applicable): 2.4.21-20.EL How reproducible: Always Steps to Reproduce: 1. Build this, call the result "crash": " void breakage() { volatile int i = *(int*)7; (void)i; } int main(int argc, char *argv[]) { breakage(); return 0; } " 2. ulimit -c unlimited 3. ./crash Segmentation fault (core dumped) 4. gdb -nx ./crash core.12345 5. bt 5 Actual Results: (gdb) bt 5 #0 breakage () at crash.c:3 #1 0x200000000007c040 in ?? () #2 0x0000000000000000 in ?? () #3 0x0000000000000000 in ?? () #4 0x0000000000000000 in ?? () (More stack frames follow...) (gdb) Expected Results: (gdb) bt 5 #0 breakage () at crash.c:3 #1 0x4000000000000690 in main (argc=1, argv=0x60000fffffffb848) at crash.c:8 (gdb) Additional info: Severity high because of data loss when any user land program crashes. johan@sthqa12:~/src/test$ cat /proc/version Linux version 2.4.21-20.EL (bhcompile.redhat.com) (gcc version 3.2.3 2 0030502 (Red Hat Linux 3.2.3-42)) #1 SMP Wed Aug 18 20:30:22 EDT 2004 johan@sthqa12:~/src/test$ cat /proc/cpuinfo processor : 0 vendor : GenuineIntel arch : IA-64 family : Itanium 2 model : 1 revision : 5 archrev : 0 features : branchlong cpu number : 0 cpu regs : 4 cpu MHz : 1500.000000 itc MHz : 1500.000000 BogoMIPS : 2239.75 processor : 1 vendor : GenuineIntel arch : IA-64 family : Itanium 2 model : 1 revision : 5 archrev : 0 features : branchlong cpu number : 0 cpu regs : 4 cpu MHz : 1500.000000 itc MHz : 1500.000000 BogoMIPS : 2239.75 processor : 2 vendor : GenuineIntel arch : IA-64 family : Itanium 2 model : 1 revision : 5 archrev : 0 features : branchlong cpu number : 0 cpu regs : 4 cpu MHz : 1500.000000 itc MHz : 1500.000000 BogoMIPS : 2239.75 processor : 3 vendor : GenuineIntel arch : IA-64 family : Itanium 2 model : 1 revision : 5 archrev : 0 features : branchlong cpu number : 0 cpu regs : 4 cpu MHz : 1500.000000 itc MHz : 1500.000000 BogoMIPS : 2239.75 johan@sthqa12:~/src/test$ gdb --version GNU gdb Red Hat Linux (6.1post-1.20040607.17rh) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "ia64-redhat-linux-gnu".