Bug 146987
| Summary: | find /etc | xargs grep LANG causes Kernel Panic | ||||||||||||
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| Product: | [Fedora] Fedora | Reporter: | Anderson <contact> | ||||||||||
| Component: | kernel | Assignee: | Dave Jones <davej> | ||||||||||
| Status: | CLOSED NOTABUG | QA Contact: | Brian Brock <bbrock> | ||||||||||
| Severity: | high | Docs Contact: | |||||||||||
| Priority: | medium | ||||||||||||
| Version: | 3 | CC: | pfrields, wtogami | ||||||||||
| Target Milestone: | --- | ||||||||||||
| Target Release: | --- | ||||||||||||
| Hardware: | i686 | ||||||||||||
| OS: | Linux | ||||||||||||
| Whiteboard: | |||||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||||
| Doc Text: | Story Points: | --- | |||||||||||
| Clone Of: | Environment: | ||||||||||||
| Last Closed: | 2005-02-03 18:50:59 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: | |||||||||||||
| Attachments: |
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Created attachment 110591 [details]
'lspci' output
Created attachment 110592 [details]
'lsmod' output
[root@anderson up2date]# nvidia-installer -i Welcome to the NVIDIA Software Installer for Unix/Linux The currently installed driver is: 'NVIDIA Accelerated Graphics Driver for Linux-x86' (version: 1.0-6629). This looks like /etc/udev/devices/nvidia0 is world readable, and grep tried to open it, resulting in a crash. That is! You are sure... But I need to leave /etc/udev/devices/nvidia0 readable and writeable for all users that belong to the 'users' group. Otherwise, only root can use Xorg (and play my favorite games). When I saw this bug closed, I decided to compile kernel 2.6.10 from www.kernel.org. After booting the kernel I built, I repeated the command and didn't get a kernel panic, but only a SEGV signal (a kernel error in syslog, too). So, I still think there is a bug in RedHat kernels, maybe a configuration problem or a patch. I won't reopen this bug. But I want leave here that information. Created attachment 110635 [details]
Syslog messages I've gotten when I ran the command
Created attachment 110636 [details]
Syslog messages I've gotten when I ran the command under the kernel I built
in both cases, the panic happened inside the nvidia module. nothing we can do to fix this. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (compatible; Konqueror/3.3; Linux) (KHTML, like Gecko) Description of problem: I get a Kernel Panic when I execute this command: $ find /etc | xargs grep LANG I can get the panic without root provileges. When I run that command, it looks for files under /etc, but when it reaches /etc/udev/devices, these errors appears: grep: /etc/udev/devices/nvidia0: Invalid argument Kernel Panic - not syncing| arch/i386/kernel/semaphore.c: 64: spin_is_locked on unintialized spinlock f1b75fa8 I also could reproduce the bug using kernel 2.6.10-1.753_FC3 and 2.6.10-1.737_FC3. The kernel panic message changed a bit: 2.6.10-1.753_FC3: grep: /etc/udev/devices/nvidia0: Invalid argument Kernel Panic - not syncing| arch/i386/kernel/semaphore.c: 64: spin_is_locked on unintialized spinlock f1ab8fa8 2.6.10-1.737_FC3: grep: /etc/udev/devices/nvidia0: Invalid argument Kernel Panic - not syncing| arch/i386/kernel/semaphore.c: 64: spin_is_locked on unintialized spinlock f1abeea8 Version-Release number of selected component (if applicable): 2.6.10-1.760_FC3 How reproducible: Always Steps to Reproduce: 1. Open konsole 2. Type (without quotes) "find /etc | xargs grep LANG" 3. Press ENTER Actual Results: I've got a Kernel Panic Expected Results: The command should return all files under /etc that contain the text 'LANG'. Additional info: