Bug 196201
| Summary: | kernel panic in hotplug app (stack in bug) | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | Lenny Maiorani <lenny> |
| Component: | kernel | Assignee: | Prarit Bhargava <prarit> |
| Status: | CLOSED INSUFFICIENT_DATA | QA Contact: | Brian Brock <bbrock> |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | 4.0 | CC: | jbaron, scott.cannata |
| 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: | 2006-10-09 13:10:16 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: | |||
To proceed further I require: 1. A copy of the oops from a system running _RHEL4_. Not RHEL4 + various patches. 2. Specifics on the system being used. (lspci? Is this box a hotplug capable box?, etc.) Changing to NEEDINFO_REPORTER. P. |
Description of problem: Sometimes when booting and shutting down, the hotplug crashes issuing an ioctl call. Version-Release number of selected component (if applicable): 2.3.9-34 How reproducible: intermittent when booting and shutting down. Steps to Reproduce: 1. 2. 3. Actual results: kernel panic, kdb stack is: kdb> bt Stack traceback for pid 22708 0x00000100d73607f0 22708 22702 1 1 R 0x00000100d7360bf0 *default.hotplug RSP RIP Function (args) 0x1007c609f00 0xffffffff8029bc06 sock_ioctl+0x2b8 0x1007c609f48 0xffffffff80185771 sys_ioctl+0x355 [1]kdb> Unable to handle kernel NULL pointer dereference at 0000000000000048 RIP: <ffffffff8029bc86>{sock_ioctl+696} PML4 d7442067 PGD d8da1067 PMD 0 Oops: 0000 [1] SMP Entering kdb (current=0x0000010079e38030, pid 11910) on processor 1 Oops: <NULL> due to oops @ 0xffffffff8029bc86 r15 = 0x0000000000000001 r14 = 0x00000000ffffffe7 r13 = 0x00000100df4ee7c0 r12 = 0x0000007fbffff500 rbp = 0x0000000000005401 rbx = 0x000001007f614750 r11 = 0x0000000000000202 r10 = 0x000000000000000a r9 = 0x0000000000000000 r8 = 0x0000007fbffff540 rax = 0x0000000000000000 rcx = 0x0000007fbffff500 rdx = 0x0000007fbffff500 rsi = 0x0000000000005401 rdi = 0x000001007f614700 orig_rax = 0xffffffffffffffff rip = 0xffffffff8029bc86 cs = 0x0000000000000010 eflags = 0x0000000000010287 rsp = 0x0000010078255f00 ss = 0x0000010078254000 ®s = 0x0000010078255e68 This is still happening as of build 2.0.57: sqaone01-SP $ console console [Enter `^Ec?' for help] [1]kdb> bt Stack traceback for pid 11076 0x000001007ecd2030 11076 8 1 1 R 0x000001007ecd2430 *hotplug RSP RIP Function (args) 0x100e73d9f00 0xffffffff8029ccb1 sock_ioctl+0x2ab 0x100e73d9f48 0xffffffff80186345 sys_ioctl+0x355 [1]kdb> ps 1 idle process (state I) and 128 sleeping system daemon (state M) processes suppressed Task Addr Pid Parent [*] cpu State Thread Command 0x000001007ecd2030 11076 8 1 1 R 0x000001007ecd2430 *hotplug 0x00000100e7f637f0 1 0 0 0 S 0x00000100e7f63bf0 init 0x00000100e7f62030 5 1 0 1 R 0x00000100e7f62430 ksoftirqd/1 0x00000100e7eb8030 7 1 0 1 R 0x00000100e7eb8430 events/1 0x00000100e7eb97f0 8 6 0 1 D 0x00000100e7eb9bf0 khelper 0x00000100e7039030 6349 1 0 1 S 0x00000100e7039430 udevd 0x0000010002eb07f0 6761 1 0 1 D 0x0000010002eb0bf0 kjournald 0x0000010081d437f0 7397 1 0 1 D 0x0000010081d43bf0 syslogd 0x000001007fa437f0 7401 1 0 1 R 0x000001007fa43bf0 klogd 0x0000010002fd3030 7412 1 0 1 S 0x0000010002fd3430 irqbalance 0x000001007f9707f0 7424 1 0 1 S 0x000001007f970bf0 portmap 0x00000100e69fb7f0 7444 1 0 1 S 0x00000100e69fbbf0 rpc.statd 0x000001007f4667f0 7470 1 0 1 S 0x000001007f466bf0 rpc.idmapd 0x00000100e6e357f0 7565 1 0 1 S 0x00000100e6e35bf0 acpid 0x000001007f466030 7596 1 0 1 S 0x000001007f466430 sshd 0x00000100e76047f0 7613 1 0 0 S 0x00000100e7604bf0 xinetd 0x000001007f793030 7626 1 0 0 S 0x000001007f793430 ntpd 0x000001007f98a030 7650 1 0 0 S 0x000001007f98a430 gpm 0x000001007ec667f0 7751 1 0 0 S 0x000001007ec66bf0 htt ... 0x00000100e7604030 11069 1 0 0 D 0x00000100e7604430 sh 0x000001007942f7f0 11070 1 0 1 R 0x000001007942fbf0 init 0x000001007962f030 11071 1 0 1 R 0x000001007962f430 mingetty 0x00000100787fe030 11072 1 0 0 D 0x00000100787fe430 mingetty 0x000001007942f030 11073 1 0 0 D 0x000001007942f430 mingetty 0x00000100799d3030 11074 1 0 0 D 0x00000100799d3430 mingetty 0x00000100787727f0 11075 1 0 1 D 0x0000010078772bf0 init 0x000001007ecd2030 11076 8 1 1 R 0x000001007ecd2430 *hotplug 0x000001007fa89030 11077 8 0 1 R 0x000001007fa89430 khelper 0x0000010079b96030 11078 10895 0 0 S 0x0000010079b96430 cwalk_ip ve [1]more> 0x00000100da4a2030 11079 10711 0 0 S 0x00000100da4a2430 ip.sh 0x00000100799d37f0 11080 11079 0 0 D 0x00000100799d3bf0 ip.sh 0x0000010078bd37f0 11081 10751 0 0 S 0x0000010078bd3bf0 ip.sh 0x00000100798d37f0 11082 11081 0 0 D 0x00000100798d3bf0 ip.sh [1]kdb> Expected results: should do this gracefully. Additional info: