Date: Thu, 23 Mar 2000 00:18:20 +0100 From: Christian Jachmann <jachmann@gigabell.net> To: Carroll Kong <damascus@eden.rutgers.edu> Cc: "stable@freebsd.org" <stable@FreeBSD.ORG> Subject: Re: 3.4-Stable crashes..(heavy diskio+networking) Message-ID: <38D954BC.4D49C9FA@gigabell.net> References: <4.2.2.20000322175820.00e0e8c0@email.eden.rutgers.edu>
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Carroll Kong wrote:
>
> At 11:27 PM 3/22/00 +0100, Christian Jachmann wrote:
> >Hi,
> >
> >I'm running 3.4 Stable here, machine is a central newsfeed.
> >Machine is running INN 2.2.2 (latest Snapshot)
> >Network thrououtput is several hundred Gigabytes a Day.
> >We do have about 150 streaming connections on this site.
> >
> >It reboots about every 24 hours.
> >
> >Is it bad ram ?
> >or the temperature ?
> >Maybe someone give me a hint.
>
> Ok. Your Maxusers seems a bit high. However, I have heard from several
> people (it was not really too decisive even after looking at the archives)
> that this is ok. How long has the system been working for? Is this
It has been working in 2.2.* Release for about half a year, whithout any
problem.
After upgrading to 3.* (now 3.4) we got those crashes....
> problem just recent? Did it just occur after you inserted some new
> ram. The error was a page fault. My guess is ram, or swap disk. (I could
> not tell if you were swapping or not). What brand name RAM? How old is
> the ram? My guess is heavily on the ram. I highly doubt if the program
System is not swaping.
I'll change the ram soon.
But something interesting is in the gdb output :
<from the first eMail:>
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x12
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0148ff0
stack pointer = 0x10:0xda886dac
frame pointer = 0x10:0xda886dc8
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 2542 (innfeed)
interrupt mask =
trap number = 12
panic: page fault
syncing disks...
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x12
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc0148ff0
stack pointer = 0x10:0xda8868dc
frame pointer = 0x10:0xda8868f8
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 2542 (innfeed)
interrupt mask =
trap number = 12
panic: page fault
---
looks like I got two page faults.
same is also in the backtrace:
#0 boot (howto=260) at ../../kern/kern_shutdown.c:285
#1 0xc0132b1d in panic (fmt=0xc01d78d2 "page fault")
at ../../kern/kern_shutdown.c:446
#2 0xc01b66b2 in trap_fatal (frame=0xda8868a0, eva=18)
at ../../i386/i386/trap.c:942
#3 0xc01b636b in trap_pfault (frame=0xda8868a0, usermode=0, eva=18)
at ../../i386/i386/trap.c:835
#4 0xc01b5fca in trap (frame={tf_es = -1072234480, tf_ds = -981401584,
tf_edi = 0, tf_esi = 0, tf_ebp = -628594440, tf_isp = -628594488,
tf_ebx = 0, tf_edx = -2147483648, tf_ecx = 40, tf_eax = 40,
tf_trapno = 12, tf_err = 0, tf_eip = -1072394256, tf_cs = 8,
tf_eflags = 66118, tf_esp = 0, tf_ss = -1073610752})
at ../../i386/i386/trap.c:437
#5 0xc0148ff0 in m_copym (m=0x0, off0=0, len=46, wait=1)
at ../../kern/uipc_mbuf.c:433
#6 0xc01747d2 in tcp_output (tp=0xd9e4ff00) at
../../netinet/tcp_output.c:505
and somewhat before:
#17 0xc0159518 in sync (p=0xc0204318, uap=0x0) at
../../kern/vfs_syscalls.c:548
#18 0xc01326c5 in boot (howto=256) at ../../kern/kern_shutdown.c:203
#19 0xc0132b1d in panic (fmt=0xc01d78d2 "page fault")
at ../../kern/kern_shutdown.c:446
#20 0xc01b66b2 in trap_fatal (frame=0xda886d70, eva=18)
at ../../i386/i386/trap.c:942
#21 0xc01b636b in trap_pfault (frame=0xda886d70, usermode=0, eva=18)
at ../../i386/i386/trap.c:835
#22 0xc01b5fca in trap (frame={tf_es = -980418544, tf_ds = -980418544,
tf_edi = 0, tf_esi = 0, tf_ebp = -628593208, tf_isp = -628593256,
tf_ebx = 0, tf_edx = 0, tf_ecx = 40, tf_eax = 40, tf_trapno = 12,
tf_err = 0, tf_eip = -1072394256, tf_cs = 8, tf_eflags = 66118,
tf_esp = 0, tf_ss = -1073610752}) at ../../i386/i386/trap.c:437
#23 0xc0148ff0 in m_copym (m=0x0, off0=0, len=46, wait=1)
at ../../kern/uipc_mbuf.c:433
#24 0xc01747d2 in tcp_output (tp=0xd9e4ff00) at
../../netinet/tcp_output.c:505
#25 0xc017608a in tcp_usr_send (so=0xd97e7f00, flags=0, m=0xc188b800,
nam=0x0,
a second page fault....
Strage ?
BYe
--
Christian Jachmann
Gigabell AG - Technik
++49 69 17084-0
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