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Bug 107715
| Summary: | /sbin/modutils -c segfaults when run as normal user on 2.6 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | [Retired] Red Hat Raw Hide | Reporter: | Ralf Ertzinger <redhat-bugzilla> | ||||||||
| Component: | modutils | Assignee: | Bill Nottingham <notting> | ||||||||
| Status: | CLOSED WORKSFORME | QA Contact: | Brian Brock <bbrock> | ||||||||
| Severity: | medium | Docs Contact: | |||||||||
| Priority: | medium | ||||||||||
| Version: | 1.0 | CC: | rvokal | ||||||||
| Target Milestone: | --- | ||||||||||
| Target Release: | --- | ||||||||||
| Hardware: | i386 | ||||||||||
| OS: | Linux | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | Environment: | ||||||||||
| Last Closed: | 2004-04-09 12:00:18 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: | 100644 | ||||||||||
| Attachments: |
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This works for me with 2.4.26-2. Please reopen if it persists. Still segfaults for me. Any pointer to a document explaining how to use the -debuginfo packages to get the debugging symbols back would be highly appreciated. Thanks. Just install modutils-debuginfo, and run modprobe under gdb. Created attachment 97335 [details]
modprobe backtrace (truncated, goes on line this for ~150 lines total)
OK, things are getting stranger.
Running /sbin/modprobe in an xterm or at the console works just fine.
Starting a screen and running modprobe in it causes modprobe to segfault.
gdb says:
(gdb) run -c
Starting program: /sbin/modprobe -c
Program received signal SIGSEGV, Segmentation fault.
0x080593e5 in gather_options (argv=0xfeeb1e78) at modprobe.c:1098
1098 if (strchr(*argv, ' ')) {
The backtrace is... interesting. Attached.
Can you attach your /etc/modprobe.conf and /etc/modprobe.conf.dist? Created attachment 97338 [details]
modprobe.conf
Created attachment 97339 [details]
modprobe.conf.dist
Ah, it's screen that's the trigger. Looking at it. Works now with screen-4.0.2-1 and modutils-2.4.26-14. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.1) Gecko/20031014 Description of problem: When running "/sbin/modprobe -c" as a normal user (kernel-2.6.0-0.test8.1.63), modprobe segfaults. It runs fine as root. Since the binary is not compiled with debugging symbols, there is not much to be seen in strace or gdb. Version-Release number of selected component (if applicable): modutils-2.4.25-13 How reproducible: Always Steps to Reproduce: 1. Boot 2.6.0-test kernel 2. Log in as normal user 3. run "/sbin/modprobe -c" Actual Results: modprobe segfaults Expected Results: Show the currently used configuration, or show an error message (if the command is meant to be run as root only) Additional info: