Bug 120643
| Summary: | kudzu causes kernel errors(REPRODUCEABLE) | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Sean Bruno <sbruno> | ||||
| Component: | kudzu | Assignee: | Bill Nottingham <notting> | ||||
| Status: | CLOSED NOTABUG | QA Contact: | David Lawrence <dkl> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | rawhide | CC: | rvokal | ||||
| 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: | 2004-04-13 04:12:18 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: | |||||||
| Attachments: |
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Created attachment 99330 [details]
strace -f of kudzu at system boot
The most important entry is the last line. It looks like it tries to delete
the ath_pci module and then it dies.
This is a bug in the ath_pci module's /proc handling. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040312 Description of problem: I have been troubleshooting issues with kudzu and my 802.11g wireless PCI card(using madwifi drivers). When the system starts, kudzu will hang the entire system if it runs before the network devices are started(sounds a lot like the recent problems with the 3com drivers). But what is even stranger, if I start kudzu last(change the init script from S05kudzu to S99kudzu), the system will not hang and boot normally. This is not the desired place for kudzu to start as it needs to be able to setup new hardware prior to the rest of the system starting. But it is a viable work-around for now. I am attaching the strace -f of kudzu at boot time for your reading enjoyment. Even worse than the above issues, is if I delete the entries from /etc/modprobe.conf and the /etc/sysconfig/network-scripts/ifcfg-eth0. Then I get this kernel error message: Apr 11 21:17:11 localhost kernel: ------------[ cut here ]------------ Apr 11 21:17:11 localhost kernel: kernel BUG at fs/proc/generic.c:660! Apr 11 21:17:11 localhost kernel: invalid operand: 0000 [#1] Apr 11 21:17:11 localhost kernel: CPU: 0 Apr 11 21:17:11 localhost kernel: EIP: 0060:[<0219c223>] Tainted: P Apr 11 21:17:11 localhost kernel: EFLAGS: 00010202 (2.6.5-1.315) Apr 11 21:17:11 localhost kernel: EIP is at remove_proc_entry+0xa5/0xf6 Apr 11 21:17:11 localhost kernel: eax: 00000001 ebx: 17dba9cc ecx: 00000000 edx: 21fde880 Apr 11 21:17:11 localhost kernel: esi: 21fde8b0 edi: 17d67800 ebp: 00000005 esp: 17f6fee0 Apr 11 21:17:11 localhost kernel: ds: 007b es: 007b ss: 0068 Apr 11 21:17:11 localhost kernel: Process modprobe (pid: 1653, threadinfo=17f6f000 task=17f5cc50) Apr 11 21:17:11 localhost kernel: Stack: 21fde880 17dba9cc 17dba000 17dba000 17dba000 17f6f000 228a6092 17dba000 Apr 11 21:17:11 localhost kernel: 228a07d6 17dba000 229cb80e 17dba000 03467000 229d00fe 03467000 229d2e04 Apr 11 21:17:11 localhost kernel: 229d2e04 021d2582 03467044 0221fb80 229d2e04 229d2e68 0221fba2 0233b1ec Apr 11 21:17:11 localhost kernel: Call Trace: Apr 11 21:17:11 localhost kernel: [<228a6092>] ieee80211_proc_remove+0x28/0x34 [wlan] Apr 11 21:17:11 localhost kernel: [<228a07d6>] ieee80211_ifdetach+0x5a/0x7f [wlan] Apr 11 21:17:11 localhost kernel: [<229cb80e>] ath_detach+0x48/0x4d [ath_pci] Apr 11 21:17:11 localhost kernel: [<229d00fe>] ath_pci_remove+0x15/0x68 [ath_pci] Apr 11 21:17:11 localhost kernel: [<021d2582>] pci_device_remove+0x16/0x28 Apr 11 21:17:11 localhost kernel: [<0221fb80>] device_release_driver+0x3c/0x46 Apr 11 21:17:11 localhost kernel: [<0221fba2>] driver_detach+0x18/0x26 Apr 11 21:17:11 localhost kernel: [<0221fd71>] bus_remove_driver+0x37/0x64 Apr 11 21:17:11 localhost kernel: [<02220043>] driver_unregister+0xc/0x2a Apr 11 21:17:11 localhost kernel: [<021d26de>] pci_unregister_driver+0xb/0x13 Apr 11 21:17:11 localhost kernel: [<229d01c7>] exit_ath_pci+0xf/0x22 [ath_pci] Apr 11 21:17:11 localhost kernel: [<02134cb9>] sys_delete_module+0x122/0x162 Apr 11 21:17:11 localhost kernel: [<0212581c>] ptrace_notify+0x109/0x1ab Apr 11 21:17:11 localhost kernel: Apr 11 21:17:11 localhost kernel: Code: 0f 0b 94 02 d2 d6 2f 02 8b 47 40 85 c0 75 09 89 f8 e8 0d ff This will happen from the command line as well as at boot time. Version-Release number of selected component (if applicable): kudzu-1.1.54-1 How reproducible: Always Steps to Reproduce: 1.Install an Atheros chipset based wireless 802.11g PCI card 2.Install the madwifi drivers 3.configure /etc/modprobe.conf to: alias eth0 ath_pci 4.configure /etc/sysconfig/network-scripts/ifcfg-eth0 5.reboot the system Actual Results: System hangs while kudzu attempts to detect new hardware Expected Results: System should boot normally. Additional info: Kudzu appears to be using /usr/share/hwdata/pcitable for the pci ids. I updated this file from a newer pci.ids file, as kudzu was writing unknown information into /etc/sysconfig/hwconf.