Experienced this, while in the middle of X. Don't really know why it
ahppened. It seems that knfsd is still alive after the oops. What's
wiered though, is that on my FreeBSD 2.2.8 machine, I can still
read/write to the nfs w/o a problem. However on my overheating udb
(which has root on nfs), it starts to complain about not being able to
contact nfs server. Showmount shows both machines connected.
System info:
Cyrix 686/200
RH 5.2+Errata updates
knfs-981112
Oops + trace:
Jan 3 04:05:45 nut kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000022
Jan 3 04:05:45 nut kernel: current->tss.cr3 = 00101000, pr3 = 00101000
Jan 3 04:05:45 nut kernel: *pde = 00000000
Jan 3 04:05:45 nut kernel: Oops: 0000
Jan 3 04:05:45 nut kernel: CPU: 0
Jan 3 04:05:45 nut kernel: EIP: 0010:[<c0129842>]
Jan 3 04:05:45 nut kernel: EFLAGS: 00010292
Jan 3 04:05:45 nut kernel: eax: 00000000 ebx: c0638c90 ecx:
c5b6b8c0 edx: c0638cdc
Jan 3 04:05:45 nut kernel: esi: c0638c90 edi: c5b6b7c0 ebp:
c5b6b8c0 esp: c5443ee4
Jan 3 04:05:45 nut kernel: ds: 0018 es: 0018 ss: 0018
Jan 3 04:05:45 nut kernel: Process nfsd (pid: 306, process nr: 21,
stackpage=c5443000)
Jan 3 04:05:45 nut kernel: Stack: c0638c90 c0638c90 0000000d c0158096
c0638c90 c5b6b8c0 c0638c90 c5b6b7c0
Jan 3 04:05:45 nut kernel: c58cd3a4 c58cd360 c5ac2a00 c01549a8
c5b6b8c0 c01554fd c5ac2a00 c58cd360
Jan 3 04:05:45 nut kernel: c0b884c0 0000000d c58cd3a4 c0b884f4
0000000d c5ac2a00 c021de38 c5404014
Jan 3 04:05:45 nut kernel: Call Trace: [<c0158096>] [<c01549a8>]
[<c01554fd>] [<c0154a73>] [<c019b035>] [<c019b7fc>] [<c019c209>]
Jan 3 04:05:45 nut kernel: [<c01549a8>] [<c01548fb>]
[<c01547a4>] [<c01065db>]
Jan 3 04:05:45 nut kernel: Code: 66 8b 50 22 66 81 e2 00 f0 66 81 fa 00
40 0f 94 c2 81 e2 ff
>>EIP: c0129842 <vfs_rename+1a/290>
Trace: c0158096 <nfsd_rename+142/200>
Trace: c01549a8 <nfsd_dispatch+0/150>
Trace: c01554fd <nfsd_proc_rename+55/70>
Trace: c0154a73 <nfsd_dispatch+cb/150>
Trace: c019b035 <svc_process+359/64c>
Trace: c019b7fc <svc_udp_recvfrom+1b4/1c8>
Trace: c019c209 <svc_recv+239/370>
Trace: c01549a8 <nfsd_dispatch+0/150>
Trace: c01548fb <nfsd+157/204>
Trace: c01547a4 <nfsd+0/204>
Trace: c01065db <kernel_thread+23/30>
Code: c0129842 <vfs_rename+1a/290> 00000000 <_EIP>:
Code: c0129842 <vfs_rename+1a/290> 0: 66 8b 50 22
movw 0x22(%eax),%dx
Code: c0129846 <vfs_rename+1e/290> 4: 66 81 e2 00 f0
andw $0xf000,%dx
Code: c012984b <vfs_rename+23/290> 9: 66 81 fa 00 00
cmpw $0x0,%dx
239 warnings issued. Results may not be reliable.
Config:
CONFIG_EXPERIMENTAL=y
CONFIG_M586=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KMOD=y
CONFIG_NET=y
CONFIG_PCI=y
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_QUIRKS=y
CONFIG_PCI_OLD_PROC=y
CONFIG_SYSVIPC=y
CONFIG_SYSCTL=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y
CONFIG_PARPORT=y
CONFIG_PARPORT_PC=y
CONFIG_PNP=y
CONFIG_PNP_PARPORT=y
CONFIG_BLK_DEV_FD=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_CMD640=y
CONFIG_BLK_DEV_RZ1000=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_IDEDMA_AUTO=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_NBD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_PARIDE_PARPORT=y
CONFIG_PACKET=y
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK_DEV=y
CONFIG_FIREWALL=y
CONFIG_NET_ALIAS=y
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_RTNETLINK=y
CONFIG_NETLINK=y
CONFIG_IP_MULTIPLE_TABLES=y
CONFIG_IP_ROUTE_MULTIPATH=y
CONFIG_IP_ROUTE_VERBOSE=y
CONFIG_IP_ROUTE_LARGE_TABLES=y
CONFIG_IP_ROUTE_NAT=y
CONFIG_IP_FIREWALL=y
CONFIG_IP_FIREWALL_NETLINK=y
CONFIG_NETLINK_DEV=y
CONFIG_IP_ALWAYS_DEFRAG=y
CONFIG_IP_MASQUERADE=y
CONFIG_IP_MASQUERADE_ICMP=y
CONFIG_IP_MASQUERADE_MOD=y
CONFIG_IP_MASQUERADE_IPAUTOFW=y
CONFIG_IP_MASQUERADE_IPPORTFW=y
CONFIG_NET_IPIP=y
CONFIG_IP_ALIAS=y
CONFIG_SYN_COOKIES=y
CONFIG_INET_RARP=m
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
CONFIG_IPV6=m
CONFIG_IPX=m
CONFIG_ATALK=m
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_VENDOR_3COM=y
CONFIG_EL3=y
CONFIG_NET_EISA=y
CONFIG_EEXPRESS_PRO100=m
CONFIG_PLIP=m
CONFIG_PPP=y
CONFIG_SLIP=m
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_UNIX98_PTYS=y
CONFIG_UNIX98_PTY_COUNT=256
CONFIG_PRINTER=y
CONFIG_MOUSE=y
CONFIG_PSMOUSE=y
CONFIG_VIDEO_DEV=m
CONFIG_VIDEO_BWQCAM=m
CONFIG_VIDEO_CQCAM=m
CONFIG_JOYSTICK=y
CONFIG_JOY_GRAVIS=y
CONFIG_QUOTA=y
CONFIG_AUTOFS_FS=y
CONFIG_HFS_FS=m
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_UMSDOS_FS=m
CONFIG_VFAT_FS=y
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_MINIX_FS=m
CONFIG_HPFS_FS=m
CONFIG_PROC_FS=y
CONFIG_DEVPTS_FS=y
CONFIG_ROMFS_FS=m
CONFIG_EXT2_FS=y
CONFIG_UFS_FS=m
CONFIG_CODA_FS=m
CONFIG_NFS_FS=y
CONFIG_NFSD=y
CONFIG_SUNRPC=y
CONFIG_LOCKD=y
CONFIG_SMB_FS=y
CONFIG_SMB_WIN95=y
CONFIG_NCP_FS=m
CONFIG_NLS=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_VGA_CONSOLE=y
CONFIG_VIDEO_SELECT=y
CONFIG_SOUND=y
CONFIG_SOUND_OSS=y
CONFIG_SOUND_SB=y
CONFIG_SB_BASE=220
CONFIG_SB_IRQ=5
CONFIG_SB_DMA=1
CONFIG_SB_DMA2=5
CONFIG_SB_MPU_BASE=330
CONFIG_SB_MPU_IRQ=-1
CONFIG_SOUND_YM3812=y
CONFIG_SOUND_VMIDI=y
-- Nadeem
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