Netdump is failing to dump the core due to HP clustering software
Issue
- Netdump is configured correctly but it is failing to dump the core.
- Below are the netdump server logs after pressing the sysrq:
SysRq : Crashing the kernel by request
Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
<ffffffff8023e49c>{sysrq_handle_crash+0}
PML4 60e940067 PGD 6108de067 PMD 615a48067 PTE 0
Oops: 0002 [1] SMP
CPU 4
Modules linked in: netconsole netdump mptctl mptbase sg ipmi_si(U) ipmi_devintf(U) ipmi_msghandler(U) hpilo(U) parport_pc lp parport pidentd(U) autofs4 i2c_dev i2c_core sunrpc
ds yenta_socket pcmcia_core cpufreq_powersave zlib_deflate deadman(U) md5 ipv6 vfat fat emcpvlumd(U) emcpxcrypt(U) emcpdm(U) emcpgpx(U) emcpmpx(U) emcp(U) joydev button battery
ac ehci_hcd uhci_hcd tg3 bnx2 dm_snapshot dm_zero dm_mirror ext3 jbd dm_mod cciss sd_mod qla2xxx(U) scsi_mod qla2xxx_conf(U)
Pid: 0, comm: swapper Tainted: P 2.6.9-78.ELsmp
RIP: 0010:[<ffffffff8023e49c>] <ffffffff8023e49c>{sysrq_handle_crash+0}
RSP: 0018:0000010037d0fcf0 EFLAGS: 00010016
RAX: 000000000000001f RBX: ffffffff80413e80 RCX: ffffffff803f64a8
RDX: 00000105fea77000 RSI: 00000100081f9e98 RDI: 0000000000000063
RBP: 0000000000000063 R08: ffffffff803f64a8 R09: ffffffff80413e80
R10: 0000000100000000 R11: 0000000000000000 R12: 00000105fea77000
R13: 00000100081f9e98 R14: 0000000000000006 R15: 0000000000000202
FS: 0000000000000000(0000) GS:ffffffff8050d480(0000) knlGS:0000000000000000
CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 00000000081fc000 CR4: 00000000000006e0
Process swapper (pid: 0, threadinfo 00000100081f8000, task 0000010037ffb7f0)
Stack: ffffffff8023e65f 000000000000002e 0000000000000001 0000010617ba4500
0000000000000001 000000000000002e 0000000000000001 0000000000000001
ffffffff80238834 0000010616f9f818
Call Trace:<IRQ> <ffffffff8023e65f>{__handle_sysrq+115} <ffffffff80238834>{kbd_event+173}
<ffffffff802a429f>{input_event+867} <ffffffff802a18bb>{hidinput_hid_event+531}
<ffffffff8029e8cb>{hid_process_event+37} <ffffffff8029ec20>{hid_input_report+807}
<ffffffff8029ed38>{hid_irq_in+167} <ffffffff80294f83>{usb_hcd_giveback_urb+126}
<ffffffffa0228ccf>{:uhci_hcd:uhci_finish_completion+98}
<ffffffffa02292e5>{:uhci_hcd:uhci_irq+1540} <ffffffff80295b64>{usb_hcd_irq+41}
<ffffffff80112ff2>{handle_IRQ_event+41} <ffffffff8011326c>{do_IRQ+197}
<ffffffff801108bf>{ret_from_intr+0} <EOI> <ffffffff8010e88c>{mwait_idle+86}
<ffffffff8010e81c>{cpu_idle+26}
Code: c6 04 25 00 00 00 00 00 c3 e9 44 ed f3 ff e9 cd 3b f4 ff 48
RIP <ffffffff8023e49c>{sysrq_handle_crash+0} RSP <0000010037d0fcf0>
CR2: 0000000000000000
Environment
- Red Hat Enterprise Linux 4
- Netdump client and Server.
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