Hi all, This just got me out of bed at 5am. Although there are a lot of Oops reports on the list I didn't find any for my kernel version or with a similar stack trace. I'm wondering if this is a known issue? Kernel: 2.4.20-8 (Redhat 9.0 default kernel). There's 2GB of RAM, I'm using barely 1/4 of it. I'm fairly confident RAM is okay (memchecked on install). Disk is supposed to be RAID 5, there are no other indications of disk problems. The java app in question has a _lot_ of threads which can do disk writes. The java process locked up and wouldn't even die with a kill -9. Required a reboot to clear it out. This is the first time this has happened, box is around 3 months old with pretty good reliability so far. I see there's a newer kernel (2.4.20-31.9) on the RH update server, but before I just upgrade and hope for the best I thought I'd post. Thanks in advance, --- Jun 19 09:43:25 ldu506 kernel: Unable to handle kernel paging request at virtual address 0000d050 Jun 19 09:43:25 ldu506 kernel: printing eip: Jun 19 09:43:25 ldu506 kernel: c0118d40 Jun 19 09:43:25 ldu506 kernel: *pde = 00000000 Jun 19 09:43:25 ldu506 kernel: Oops: 0000 Jun 19 09:43:25 ldu506 kernel: autofs 8139too mii sis900 keybdev mousedev hid input ehci-hcd usb-ohci usbcore ext3 jbd aic7xxx sd_mod scsi_mod Jun 19 09:43:25 ldu506 kernel: CPU: 0 Jun 19 09:43:25 ldu506 kernel: EIP: 0060:[<c0118d40>] Not tainted Jun 19 09:43:25 ldu506 kernel: EFLAGS: 00010007 Jun 19 09:43:25 ldu506 kernel: Jun 19 09:43:25 ldu506 kernel: EIP is at __wake_up [kernel] 0x20 (2.4.20-8) Jun 19 09:43:25 ldu506 kernel: eax: c030db54 ebx: 0000d054 ecx: 00000001 edx: 00000003 Jun 19 09:43:25 ldu506 kernel: esi: c030db54 edi: 00000003 ebp: f5e5df00 esp: f5e5dee0 Jun 19 09:43:26 ldu506 kernel: ds: 0068 es: 0068 ss: 0068 Jun 19 09:43:26 ldu506 kernel: Process java (pid: 11287, stackpage=f5e5d000) Jun 19 09:43:26 ldu506 kernel: Stack: 00000000 f8866d60 00000000 00000001 00000282 00000000 c277aa90 fe38012e Jun 19 09:43:26 ldu506 kernel: 79ebab9b c01364f5 d3d89380 c277aa90 0000011b 0000012e 084291c4 c012c0de Jun 19 09:43:26 ldu506 kernel: ffffffff 00000000 0000012e f7b35c2c c277aa90 00000000 0000011b d4327cec Jun 19 09:43:26 ldu506 kernel: Call Trace: [<f8866d60>] journal_dirty_sync_data [ext3] 0x0 (0xf5e5dee4)) Jun 19 09:43:26 ldu506 kernel: [<c01364f5>] generic_file_write [kernel] 0x5d5 (0xf5e5df04)) Jun 19 09:43:26 ldu506 kernel: [<c012c0de>] futex_wait [kernel] 0x10e (0xf5e5df1c)) Jun 19 09:43:26 ldu506 kernel: [<f8864089>] ext3_file_write [ext3] 0x39 (0xf5e5df74)) Jun 19 09:43:26 ldu506 kernel: [<c0146e93>] sys_write [kernel] 0xa3 (0xf5e5df94)) Jun 19 09:43:26 ldu506 kernel: [<c0109537>] system_call [kernel] 0x33 (0xf5e5dfc0)) Jun 19 09:43:26 ldu506 kernel: Jun 19 09:43:26 ldu506 kernel: Jun 19 09:43:26 ldu506 kernel: Code: 8b 53 fc 8b 02 85 c7 75 17 8b 1b 39 f3 75 f1 ff 75 f0 9d 83 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listman.redhat.com/archives/ext3-users/attachments/20040619/6612d8a6/attachment.htm>