Re: Reproducible Panic with port iplog

On Wed, 2 Mar 2005, Mike Jakubik wrote:

> >> It seems that the port iplog, causes a panic when it is stopped. Oddly
> >> enough it works fine when running. Below is the information i gathered,
> >> i
> >> dont know what commands to feed the debugger to provide useful info, so
> >> instructions are welcome. I have also defined dumpdev in rc.conf and
> >> makeoptions DEBUG=-g" in kernel, but the system does not dump. I dont
> >> understand why, even dmesg reports its setup.
> >
> > Would you please tell us which version of FreeBSD you are using, either
> > RELENG_5 or CURRENT.  I guess it's CURRENT, but it's better asking.
> >
> > Your kernel configuration file could be useful too.
>
> Yes, its -current. I've ran fbsd on this machine for a few years now, and
> since my last cvsup/buildword (about 2 months ago) there has been no
> problems with it. It runs samba, imap, apache, mysql, php, etc... So it
> gets fairly decent usage.

I'll see if I can reproduce this, but in the interim you might try
disabling PREEMPTION.  It doesn't quite have all the bugs worked out yet.
If you want to get a dump try compiling in KDB and DDB then doing "call
doadump" when it panics.  It should either start dumping or complain why
it can't. Last I checked dumps to ATA worked :)

> machine         i386
> cpu             I686_CPU
> ident           DP
>
> options         SCHED_4BSD              # 4BSD scheduler
> options         PREEMPTION              # Enable kernel thread preemption
> options         INET                    # InterNETworking
> options         FFS                     # Berkeley Fast Filesystem
> options         SOFTUPDATES             # Enable FFS soft updates support
> options         UFS_DIRHASH             # Improve performance on big
> directories
> options         COMPAT_43               # Compatible with BSD 4.3 [KEEP
> THIS!]
>
> options         COMPAT_FREEBSD4         # Compatible with FreeBSD4
>
> options         SYSVSHM                 # SYSV-style shared memory
> options         SYSVMSG                 # SYSV-style message queues
> options         SYSVSEM                 # SYSV-style semaphores
> options         _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time
> extensions
> options         KBD_INSTALL_CDEV        # install a CDEV entry in /dev
> options         ADAPTIVE_GIANT          # Giant mutex is adaptive.
>
> # Bus support.  Do not remove isa, even if you have no isa slots
> device          isa
> device          pci
>
> # Floppy drives
> device          fdc
>
> # ATA and ATAPI devices
> device          ata
> device          atadisk         # ATA disk drives
> options         ATA_STATIC_ID   # Static device numbering
>
> # atkbdc0 controls both the keyboard and the PS/2 mouse
> device          atkbdc          # AT keyboard controller
> device          atkbd           # AT keyboard
>
> device          vga             # VGA video card driver
>
> # syscons is the default console driver, resembling an SCO console
> device          sc
>
> device          agp             # support several AGP chipsets
>
> # Floating point support - do not disable.
> device          npx
>
> # Serial (COM) ports
> device          sio             # 8250, 16[45]50 based serial ports
>
> # Parallel port
> device          ppc
> device          ppbus           # Parallel port bus (required)
> device          lpt             # Printer
>
> # PCI Ethernet NICs.
> device          em              # Intel PRO/1000 adapter Gigabit Ethernet
> Card
>
> # PCI Ethernet NICs that use the common MII bus controller code.
> # NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
> device          miibus          # MII bus support
> device          fxp             # Intel EtherExpress PRO/100B (82557, 82558)
> device          xl              # 3Com 3c90x (``Boomerang'', ``Cyclone'')
>
> # Pseudo devices.
> device          loop            # Network loopback
> device          mem             # Memory and kernel memory devices
> device          io              # I/O device
> device          random          # Entropy device
> device          ether           # Ethernet support
> device          pty             # Pseudo-ttys (telnet etc)
> device          bpf             # Berkeley packet filter
>
> # USB support
> device          uhci            # UHCI PCI->USB interface
> device          ohci            # OHCI PCI->USB interface
> device          usb             # USB Bus (required)
>
> device          pf
> options         ALTQ
> options         ALTQ_PRIQ
>
> # Debugging
> makeoptions     DEBUG=-g
> options         INVARIANTS
> options         INVARIANT_SUPPORT
> options         WITNESS
> options         WITNESS_SKIPSPIN
>
>
> _______________________________________________
> freebsd-current_at_freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"
>

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite_at_gumbysoft.com          |  www.FreeBSD.org