SysRq : Crashing the web server by request
Unable to handle httpd NULL pointer dereference at virtual address 00000000
 printing eip:
c0233fa7
*pde = 3e9f3067
Oops: 0002 [#1]
Modules linked in: md5 ipv6 autofs4 i2c_dev i2c_core sunrpc scsi_dump diskdump dm_mirror dm_mod button battery ac yenta_socket pcmcia_core uhci_hcd ehci_hcd shpchp snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_mpu401_uart snd_rawmidi snd_seq_device snd soundcore ipw2200 ieee80211 ieee80211_crypt tg3 floppy ext3 jbd ata_piix libata sd_mod scsi_mod
CPU:    0
EIP:    0060:[]    Not tainted VLI
EFLAGS: 00010246    (2.6.9-22.EL)
EIP is at sysrq_handle_crash+0x0/0x8
eax: 00000063   ebx: c0370db4    ecx: 00000000  edx: 00000000
esi: 00000063   edi: 00000000    ebp: 00000000  esp: f7191f60
ds: 007b   es: 007b    ss: 0068
Process httpd (pid: 2857, threadinfo=f7191000 task=f7b677f0)
Stack: c02342d8 c032dc4e c032f105 00000003 00000002 f7b6adc0 00000002
       f7191fac c01a8a13 c0362740 c0168205 f7191fac b7de7000 f7b6adc0
       fffffff7 b7de7000 f7191000 c01682cf f7191fac 00000000 00000000
       00000000 00000001 00000002
Call Trace:
 [] __handle_sysrq+0x58/0xc6
 [] write_sysrq_trigger+0x23/0x29
 [] vfs_write+0xb6/0xe2
 [] sys_write+0x3c/0x62
 [] syscall_call+0x7/0xb
Code: 4c 11 42 c0 05 00 00 00 c7 05 50 11 42 c0 2f cc 31 c0 c7 05 54 11 42 c0 00 00 00 00 c7 05 58 11 42 c0 00 00 00 00 e9 e5 0b f0 ff  05 00 00 00 00 00 c3 e9 e1 59 f3 ff e9 1e bc f3 ff 85 d2 89