[OpenAFS] Problems with 2.6.10, 1.3.79 & memcache

[chas williams - CONTRACTOR]

tell me a little about your kernel.  is it smp?  is it preempt?

In message <423191C6.4050706@cg.cs.tu-bs.de>,Lars Schimmer writes:
>Mar 11 13:05:30 atlas kernel:  <1>Unable to handle kernel NULL pointer
>dereference at virtual address 000000c4
>Mar 11 13:05:30 atlas kernel:  printing eip:
>Mar 11 13:05:30 atlas kernel: f8cfe89d
>Mar 11 13:05:30 atlas kernel: *pde = 00000000
>Mar 11 13:05:30 atlas kernel: Oops: 0000 [#4]
>Mar 11 13:05:30 atlas kernel: PREEMPT
>Mar 11 13:05:30 atlas kernel: Modules linked in: openafs autofs4 ipv6 af_packe
>t
>analog tsdev mousedev psmouse evdev pcspkr rtc
>~ snd_via82xx snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer
>snd_page_alloc gameport snd_mpu401_uart snd_rawmidi sn
>d_seq_device snd soundcore i2c_viapro i2c_core via_agp agpgart uhci_hcd usbcor
>e
>3c59x via_ircc irda ide_cd cdrom ide_generic v
>ia82cxxx trm290 triflex slc90e66 sis5513 siimage serverworks sc1200 rz1000 pii
>x
>pdc202xx_old pdc202xx_new opti621 ns87415 hpt3
>66 ide_disk hpt34x generic cy82c693 cs5530 cs5520 cmd64x atiixp amd74xx alim15
>x3
>aec62xx ide_core unix
>Mar 11 13:05:30 atlas kernel: CPU:    0
>Mar 11 13:05:30 atlas kernel: EIP:    0060:[pg0+947779741/1068364800]
>Tainted: P      VLI
>Mar 11 13:05:30 atlas kernel: EFLAGS: 00010217   (2.6.10-atlas)
>Mar 11 13:05:30 atlas kernel: EIP is at rxi_AllocPacketNoLock+0x3d/0x110 [open
>afs]
>Mar 11 13:05:30 atlas kernel: eax: 0000007b   ebx: 00000000   ecx: 00000001
>edx: 0000007c
>Mar 11 13:05:30 atlas kernel: esi: 00000000   edi: 00000004   ebp: 00000584
>esp: f68dbde8
>Mar 11 13:05:30 atlas kernel: ds: 007b   es: 007b   ss: 0068
>Mar 11 13:05:30 atlas kernel: Process afs_checkserver (pid: 5872,
>threadinfo=f68da000 task=f68a9560)
>Mar 11 13:05:30 atlas kernel: Stack: f68dbdf4 f19e71a0 f8cfe9cc 00000001
>00000000 00000000 02000000 f68dbe38
>Mar 11 13:05:30 atlas kernel:        00000010 f19e71b8 00000004 f1fc7280
>f19e71a0 f8cfbd2a f19e71a0 00000004
>Mar 11 13:05:30 atlas kernel:        f68dbe68 f7b7d540 f4d669c0 00000004
>00000000 00000000 00000000 f19e71a0
>Mar 11 13:05:30 atlas kernel: Call Trace:
>Mar 11 13:05:30 atlas kernel:  [pg0+947780044/1068364800]
>rxi_AllocSendPacket+0x4c/0x130 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947768618/1068364800]
>rxi_WriteProc+0x1da/0x480 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947769665/1068364800]
>rx_WriteProc32+0x71/0xd0 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947758560/1068364800]
>rxi_KeepAliveEvent+0x0/0xa0 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947786566/1068364800]
>xdrrx_putint32+0x26/0x40 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947811799/1068364800] afs_xdr_int+0x47/0x7
>0
>[openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947727475/1068364800]
>StartRXAFS_GetTime+0x33/0x50 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947786048/1068364800] multi_Ready+0x0/0x70
>[openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947596249/1068364800]
>afs_CheckServers+0x269/0x900 [openafs]
>Mar 11 13:05:30 atlas kernel:  [process_timeout+0/16] process_timeout+0x0/0x10
>Mar 11 13:05:30 atlas kernel:  [pg0+947825246/1068364800]
>osi_TimedSleep+0xbe/0x110 [openafs]
>Mar 11 13:05:30 atlas kernel:  [default_wake_function+0/32]
>default_wake_function+0x0/0x20
>Mar 11 13:05:30 atlas kernel:  [default_wake_function+0/32]
>default_wake_function+0x0/0x20
>Mar 11 13:05:30 atlas kernel:  [pg0+947824424/1068364800] afs_osi_Wait+0x58/0x
>80
>[openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947526458/1068364800]
>afs_CheckServerDaemon+0xba/0x1a0 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947840656/1068364800]
>afsd_thread+0x270/0x380 [openafs]
>Mar 11 13:05:30 atlas kernel:  [pg0+947840032/1068364800] afsd_thread+0x0/0x38
>0
>[openafs]
>Mar 11 13:05:30 atlas kernel:  [kernel_thread_helper+5/20]
>kernel_thread_helper+0x5/0x14
>Mar 11 13:05:30 atlas kernel: Code: 42 ff 3b 04 8d b0 e7 d2 f8 0f 8c aa 00 00 
>00
>8b 1d c0 96 d3 f8 ff 05 e0 96 d3 f8 81 fb bc
>96 d3 f8 74 79 8d 42 ff a3 e8 95 d3 f8 <f6> 83 c4 00 00 00 02 74 5a 8b 43 04 8
>b
>13 89 42 04 89 10 c7 43