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Hello,
Which version of ipvs are you using? Have you tried ipvs-1.0.6 for kernel
2.4?
Regards,
Wensong
On Mon, 16 Sep 2002 Jeremy.Coleman@xxxxxxx wrote:
> Hi,
>
> We have axperienced a kernel crash using LVS load balancing on Redhat 7.2
> kernel 2.4.18-3.
>
> Previous to the crash a similar problem was logged on the /var/log/messages
> file, but the kernel did not crash. subsequently (2 days later) the problem
> reoccured, but was only logged onto the console, and the machine became
> unusable (Pentium 3 with 64 Mb RAM). Had to reboot.
>
> The machine handles quite a lot of traffic. 600 active connections are
> normally present at peak times.
>
> The log extract is:
>
> Sep 14 09:54:58 yduxbl01 kernel: IPVS: ip_vs_send_async error
> Sep 14 09:54:58 yduxbl01 kernel: Unable to handle kernel NULL pointer
> dereference at virtual address 0000000c
> Sep 14 09:54:58 yduxbl01 kernel: printing eip:
> Sep 14 09:54:58 yduxbl01 kernel: c48fa3ae
> Sep 14 09:54:58 yduxbl01 kernel: *pde = 00000000
> Sep 14 09:54:58 yduxbl01 kernel: Oops: 0000
> Sep 14 09:54:58 yduxbl01 kernel: ip_vs_wlc ip_vs autofs eepro100 ipchains
> ide-cd cdrom usb-uhci usbcore ext3 jb
> Sep 14 09:54:58 yduxbl01 kernel: CPU: 0
> Sep 14 09:54:58 yduxbl01 kernel: EIP: 0010:[<c48fa3ae>] Not tainted
> Sep 14 09:54:58 yduxbl01 kernel: EFLAGS: 00010282
> Sep 14 09:54:58 yduxbl01 kernel:
> Sep 14 09:54:58 yduxbl01 kernel: EIP is at sync_master_loop [ip_vs] 0xbe
> (2.4.18-3)
> Sep 14 09:54:58 yduxbl01 kernel: eax: c48fd460 ebx: 00000000 ecx:
> c34f602c edx: c34f6000
> Sep 14 09:54:58 yduxbl01 kernel: esi: 00000000 edi: c084f7e4 ebp:
> c34f6000 esp: c34f7fa4
> Sep 14 09:54:58 yduxbl01 kernel: ds: 0018 es: 0018 ss: 0018
> Sep 14 09:54:58 yduxbl01 kernel: Process ipvs syncmaster (pid: 17341,
> stackpage=c34f7000)
> Sep 14 09:54:58 yduxbl01 kernel: Stack: c48fdd03 c34f7fc8 c02123d4 c34f623a
> 00000002 c0000000 c4904f29 00000001
> Sep 14 09:54:58 yduxbl01 kernel: c48fa638 00000000 c34f6000 00000000
> 00000000 00000000 c34f6000 c4903b60
> Sep 14 09:54:58 yduxbl01 kernel: c4903b60 00000100 c279fe70 c0107136
> 00000000 c48fa500 c1a6a175
> Sep 14 09:54:58 yduxbl01 kernel: Call Trace: [<c48fdd03>] .rodata.str1.1
> [ip_vs] 0x423
> Sep 14 09:54:58 yduxbl01 kernel: [<c02123d4>] sprintf [kernel] 0x14
> Sep 14 09:54:58 yduxbl01 kernel: [<c4904f29>] ip_vs_mcast_ifn [ip_vs] 0x5
> Sep 14 09:54:58 yduxbl01 kernel: [<c48fa638>] sync_thread [ip_vs] 0x138
> Sep 14 09:54:58 yduxbl01 kernel: [<c4903b60>] sync_wait [ip_vs] 0x4
> Sep 14 09:54:58 yduxbl01 kernel: [<c4903b60>] sync_wait [ip_vs] 0x4
> Sep 14 09:54:58 yduxbl01 kernel: [<c0107136>] kernel_thread [kernel] 0x26
> Sep 14 09:54:58 yduxbl01 kernel: [<c48fa500>] sync_thread [ip_vs] 0x0
> Sep 14 09:54:58 yduxbl01 kernel:
> Sep 14 09:54:58 yduxbl01 kernel:
> Sep 14 09:54:58 yduxbl01 kernel: Code: 8b 73 0c 56 e8 89 46 83 fb 53 e8 83
> 46 83 fb 59 31 d2 89 15
>
> Thanks,
>
> Jeremy
>
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