Bug 141532
| Summary: | gdb fails on kernel module w/segmentation violation | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | Dave Anderson <anderson> |
| Component: | gdb | Assignee: | Elena Zannoni <ezannoni> |
| Status: | CLOSED NEXTRELEASE | QA Contact: | David Lawrence <dkl> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 4.0 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2004-12-06 21:22:36 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: | |||
This report was based upon using the ext3 kernel module from the 2.6.9-1.648_EL kernel, which was compiled with: (gcc version 3.4.2 20041017 (Red Hat 3.4.2-6.fc3)) Running the same test on the ext3 kernel module from the 2.6.9-1.860_EL kernel, which was compiled with: (gcc version 3.4.3 20041125 (Red Hat 3.4.3-6.EL4)) no longer causes a segmentation violation. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030611 Description of problem: This problem was originally seen when using the crash utility, (which has gdb embedded), when trying to do an "add-symbol-file" operation on a RHEL4 kernel module. However, the problem can easily be reproduced by simply running gdb standalone on the kernel module file, which must have its associated debuginfo file installed on the target system. In the example below, the RHEL4 ext3.ko kernel module causes gdb to fail with a segmentation violation. Version-Release number of selected component (if applicable): gdb-6.1post-1.20040607.41rh How reproducible: Always Steps to Reproduce: 1. On a system running RHEL4, determine the version with "uname -r", and if not already installed, install the associated kernel debuginfo package. 2. cd /lib/modules/`uname -r`/kernel/fs/ext3 3. gdb ext3.ko Actual Results: # gdb ext3.ko GNU gdb Red Hat Linux (6.1post-1.20040607.41rh) 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 "x86_64-redhat-linux-gnu"... Segmentation fault # Expected Results: Should initialize to a (gdb) prompt with no errors. Additional info: