Bug 99011
| Summary: | Full backup of root directory using 'tar' causes system reboot | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 2.1 | Reporter: | dnd |
| Component: | tar | Assignee: | Jeff Johnson <jbj> |
| Status: | CLOSED NOTABUG | QA Contact: | Ben Levenson <benl> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 2.1 | ||
| 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: | 2003-07-11 20:37:06 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: | |||
[root@netuxipf root]# cat /etc/redhat-release Red Hat Linux Advanced Server release 2.1AS (Derry) [root@netuxipf root]# uname -a Linux netuxipf 2.4.18-e.31smp #1 SMP Wed May 21 17:47:59 EDT 2003 ia64 unknown Reading of memory holes and other I/O space is expected to MCA. |
From Bugzilla Helper: User-Agent: Mozilla/4.75 [en] (WinNT; U) Description of problem: ia64/IPF (rx2600) system reboots during execution of "tar cvf fullbackup.tar /" command. The culprit is /proc filesystem. If the tar command excludes the /proc filesystem, the tar command is successful without a system reboot. It turns out the the problem is the ia-64 memory space with its embedded I/O memory and holes. If you read one of these invalid memory locations you will MCA. For example, just wc /proc/kcore you will generate an MCA and reboot. Version-Release number of selected component (if applicable): tar-1.13.25-4.AS21.0 How reproducible: Always Steps to Reproduce: 1. Execute "tar cvf fullbackup.tar /" 2. System would reboot during the backup of /proc filesystem. 3. Actual Results: Automatic System Reboot Expected Results: System should NOT automatically reboot during backup of /proc filesystem. Additional info