Hello,

I have a small problem with a RedHat PC.
I created a Java application which is runnig on a lot of RedHat computers without problem.
But one of my customer claimed that sometimes the application is not working. He gave me the time when the application was broken and I checked in /var/log/messages to see if something was wrong at this time.

Here below is the strange message I can see in /var/log/message
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Aug 1 09:51:49 localhost kernel: general protection fault: 0000
Aug 1 09:51:49 localhost kernel: parport_pc lp parport autofs sis900 ipt_REJECT iptable_filter ip_tables keybdev mousedev hid input ehci-hcd usb-ohci usbcore ext3 jbd
Aug 1 09:51:49 localhost kernel: CPU: 0
Aug 1 09:51:49 localhost kernel: EIP: 0060:[<c0199509>] Not tainted
Aug 1 09:51:49 localhost kernel: EFLAGS: 00010297
Aug 1 09:51:49 localhost kernel:
Aug 1 09:51:49 localhost kernel: EIP is at rs_ioctl [kernel] 0x49 (2.4.20-8)
Aug 1 09:51:49 localhost kernel: eax: 00000006 ebx: c81f2000 ecx: c81f2000 edx: 0000541b
Aug 1 09:51:49 localhost kernel: esi: 00000012 edi: 0000541b ebp: c1963b80 esp: c83e5e94
Aug 1 09:51:49 localhost kernel: ds: 0000 es: 0068 ss: 0068
Aug 1 09:51:49 localhost kernel: Process java (pid: 928, stackpage=c83e5000)
Aug 1 09:51:49 localhost kernel: Stack: 00c8aec0 cdf5b5d4 00000000 00000000 fd010010 00000286 00000000 cbceeb80
Aug 1 09:51:49 localhost kernel: c034c000 c0370100 c034dfd0 c0118bde c83e5ee0 c0370100 c83e4000 00000296
Aug 1 09:51:49 localhost kernel: 001e1d22 c83e5ef4 00000246 001e1d22 c0125c17 c83e5ef4 082db000 00000000
Aug 1 09:51:49 localhost kernel: Call Trace: [<c0118bde>] schedule [kernel] 0x16e (0xc83e5ec0))
Aug 1 09:51:49 localhost kernel: [<c0125c17>] schedule_timeout [kernel] 0x67 (0xc83e5ee4))
Aug 1 09:51:49 localhost kernel: [<c0125ba0>] process_timeout [kernel] 0x0 (0xc83e5f04))
Aug 1 09:51:49 localhost kernel: [<c0144a31>] __attach_vcache [kernel] 0x31 (0xc83e5f0c))
Aug 1 09:51:49 localhost kernel: [<c012c0de>] futex_wait [kernel] 0x10e (0xc83e5f1c))
Aug 1 09:51:49 localhost kernel: [<c012bf70>] futex_vcache_callback [kernel] 0x0 (0xc83e5f2c))
Aug 1 09:51:49 localhost kernel: [<c0184d6d>] tty_ioctl [kernel] 0x30d (0xc83e5f64))
Aug 1 09:51:49 localhost kernel: [<c01566e9>] sys_ioctl [kernel] 0xc9 (0xc83e5f94))
Aug 1 09:51:49 localhost kernel: [<c0109537>] system_call [kernel] 0x33 (0xc83e5fc0))
Aug 1 09:51:49 localhost kernel:
Aug 1 09:51:49 localhost kernel:
Aug 1 09:51:49 localhost kernel: Code: f6 81 14 01 00 00 02 0f 85 73 02 00 00 8d 76 00 8d bc 27 00
Aug 2 09:49:48 localhost login(pam_unix)[906]: session opened for user ccc by LOGIN(uid=0)
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Nothing strange before and after this message but this is exactly the time when the application was broken.
I have no idea about where comes from this message and how to solve the problem.

Many thanks in advance for your help and your explanations.

PS: The linux RedHat version (v9.0) and the kernel version is exactly the same on all other working computers.

Thanks in advance.

Alain.