i386/105389: Panic triggered by tcpserver

[Dave Foster]

>Number:         105389
>Category:       i386
>Synopsis:       Panic triggered by tcpserver
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Nov 10 20:40:21 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     Dave Foster
>Release:        6.2-PRERELEASE #0
>Organization:
Canadian Net
>Environment:
reeBSD whitepine.canadian.net 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Thu Nov  9 10:33:28 EST 2006     dave at whitepine.canadian.net:/usr/src/sys/i386/compile/WHITEPINE  i386

>Description:
Randomly, and always while running tcpserver, a component used with qmail. The kernel will panic. This is the same issue as kern/104765 and possibly "freebsd panic on HP Proliant DL360" However, here we have i386 The mail server having this issue, handles 8000 emails a day. Panics occur every few hours to few days. Please see 104765 for traces.

Nov  9 12:50:33 whitepine kernel: Fatal trap 12: page fault while in kernel mode
Nov  9 12:50:33 whitepine kernel: fault virtual address = 0x78
Nov  9 12:50:33 whitepine kernel: fault code            = supervisor read, page not present
Nov  9 12:50:33 whitepine kernel: instruction pointer   = 0x20:0xc06807e1
Nov  9 12:50:33 whitepine kernel: stack pointer         = 0x28:0xeaf2aab8
Nov  9 12:50:33 whitepine kernel: frame pointer         = 0x28:0xeaf2aabc
Nov  9 12:50:33 whitepine kernel: code segment          = base 0x0, limit 0xfffff, type 0x1b
Nov  9 12:50:33 whitepine kernel: = DPL 0, pres 1, def32 1, gran 1
Nov  9 12:50:33 whitepine kernel: processor eflags      = resume, IOPL = 0
Nov  9 12:50:33 whitepine kernel: current process               = 15690 (tcpserver)
Nov  9 12:50:33 whitepine kernel: trap number           = 12
Nov  9 12:50:33 whitepine kernel: panic: page fault
Nov  9 12:50:33 whitepine kernel: Uptime: 51m25s
Nov  9 12:50:33 whitepine kernel: Cannot dump. No dump device defined.

>How-To-Repeat:
Place machine into production and watch!
>Fix:
None found
>Release-Note:
>Audit-Trail:
>Unformatted: