Created attachment 340288 [details] kernel panic info Description of problem: with kernel RHEL5.4-Server-20090412.nightly, on gs-bl460cg1-01.rhts.bos.redhat.com, when do "echo disk > /sys/power/state", kernel panic. also tried 2.6.18-128 kernel, same things happens. Version-Release number of selected component (if applicable): distro is RHEL5.4-Server-20090412.nightly, kernel version is 2.6.18-138. How reproducible: always Steps to Reproduce: 1. [root@dell-pe2950-01 ~]# cat /sys/power/state disk 2. echo disk > /sys/power/state 3. Actual results: kernel panic Expected results: Additional info:
Created attachment 340289 [details] cpuinfo of the kernel panic machine gs-bl460cg1-01.rhts.bos.redhat.com
tried on another rhts machine dell-pe2950-01.rhts.bos.redhat.com, panic did not happen with same operation. on the paniced machine, there is a modules named lpfc [root@gs-bl460cg1-01 ~]# lsmod | grep lpfc lpfc 352909 0 scsi_transport_fc 73801 1 lpfc scsi_mod 196569 9 ib_iser,iscsi_tcp,libiscsi,scsi_transport_iscsi,scsi_dh,lpfc,scsi_transport_fc,cciss,sd_mod on the non-paniced machine, there is no such module.
Can you test with the kernel from https://brewweb.devel.redhat.com/taskinfo?taskID=1772029 when it finishes building?
tested the x86_64 kernel, panic does not happen, but suspend seems not work, following is printed out then hang there: gs-bl460cg1-01.rhts.bos.redhat.com login: Disabling non-boot CPUs ... CPU 1 is now offline CPU1 is down CPU 2 is now offline CPU2 is down CPU 3 is now offline CPU3 is down CPU 4 is now offline CPU4 is down CPU 5 is now offline CPU5 is down Breaking affinity for irq 4 Breaking affinity for irq 98 Breaking affinity for irq 106 CPU 6 is now offline CPU6 is down CPU 7 is now offline CPU7 is down Stopping tasks: ==================================================================================<3>lpfc 0000:10:00.0: 0:0433 Wakeup on signal: rc=xfffffe00 lpfc 0000:10:00.1: 1:0433 Wakeup on signal: rc=xfffffe00 =========| Shrinking memory... done (66686 pages freed) while for a successful suspend, info should like this: CPU 3 is now offline CPU3 is down CPU 4 is now offline CPU4 is down Breaking affinity for irq 3 Breaking affinity for irq 14 Breaking affinity for irq 66 Breaking affinity for irq 82 Breaking affinity for irq 90 CPU 5 is now offline CPU5 is down CPU 6 is now offline CPU6 is down CPU 7 is now offline CPU7 is down Stopping tasks: ========================================================================================| Shrinking memory... done (0 pages freed) Saving image data pages (107864 pages) ... 52%<6>bnx2: eth0 NIC Copper Link is Up, 1000 Mbps full duplex done Wrote 431456 kbytes in 5.57 seconds (77.46 MB/s) S| Power down. acpi_power_off called further more, resume does not work out.
Given how long this problem has gone unresolved, it's relatively low severity, and the lifecycle stage that RHEL 5 is currently in, the problem reported will not be fixed in RHEL 5. -Lenny.