Re: 5.2-CURRENT crashes everyday

Hi,

I'm pretty sure that this is a known, harmless bug.  It might even have
been fixed in the last few weeks, but I can't remember for sure.  You
can avoid the panics by removing INVARIANTS from your kernel config.

Scott

Andrew A. Leikand wrote:
> Hello all
> 
>  well i have a real big problem it is the server with 5.2-current.
> Harware is IBM eServer 345 Dual Xeon with serveRAID 6i, raid controller
> has no support under STABLE thus i had no choice :(
>  There are apache and sendmail on the server, load averages about 0.01,
> but it crashes everyday and i have no idea how to force it work.
>  The only messages before it goes down is
> 
> lock order reversal
>  1st 0xc6574738 vm object (vm object) _at_ /usr/src/sys/vm/swap_pager.c:1311
>  2nd 0xc0673ae0 swap_pager swhash (swap_pager swhash) _at_ /usr/src/sys/vm/swap_pager.c:1797
>  3rd 0xc0c43a50 vm object (vm object) _at_ /usr/src/sys/vm/uma_core.c:925
> Stack backtrace:
> backtrace(0,1,c064cf90,c064e0c0,c06194dc) at backtrace+0x12
> witness_checkorder(c0c43a50,9,c05fe7bf,39d) at witness_checkorder+0x53b
> _mtx_lock_flags(c0c43a50,0,c05fe7bf,39d,c350b288) at _mtx_lock_flags+0x57
> obj_alloc(c3502dc0,1000,de086a2b,101,de086a38) at obj_alloc+0x31
> slab_zalloc(c3502dc0,1,c3502dc0,c3502dc0,c350b280) at slab_zalloc+0x87
> uma_zone_slab(c3502dc0,1,c350b288,0,c05fe7bf,79c) at uma_zone_slab+0xb0
> uma_zalloc_internal(c3502dc0,0,1,c350b288,0) at uma_zalloc_internal+0x29
> uma_zalloc_arg(c3502dc0,0,1) at uma_zalloc_arg+0x2a2
> swp_pager_meta_build(c6574738,5e,0,2,0) at swp_pager_meta_build+0x108
> swap_pager_putpages(c6574738,de086bf0,1,0,de086b60) at swap_pager_putpages+0x2a8
> default_pager_putpages(c6574738,de086bf0,1,0,de086b60) at default_pager_putpages+0x18
> vm_pageout_flush(de086bf0,1,0,c064c6e0,2ff) at vm_pageout_flush+0x112
> vm_pageout_clean(c2ca1f88) at vm_pageout_clean+0x2a5
> vm_pageout_scan(0,c0673fe0,0,c05fe55f,5a7) at vm_pageout_scan+0x543
> vm_pageout(0,de086d48,0,c057f0e4,0) at vm_pageout+0x2cf
> fork_exit(c057f0e4,0,de086d48) at fork_exit+0x98
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xde086d7c, ebp = 0 ---
> 
>  Kernel config and dmesg  are attached.
> 
> Appreciate any comments or feedback on this.
> 
> --
> BR, Andrew
> 
> 
> ------------------------------------------------------------------------
> 
> machine		i386
> cpu		I686_CPU
> options         CPU_ENABLE_SSE
> options         MPTABLE_FORCE_HTT       # Enable HTT CPUs with the MP Table
> 
> ident		TUNED
> 
> # To statically compile in device wiring instead of /boot/device.hints
> #hints		"GENERIC.hints"		# Default places to look for devices.
> 
> #makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols
> 
> options 	SCHED_ULE		# ULE scheduler
> options 	INET			# InterNETworking
> options 	FFS			# Berkeley Fast Filesystem
> options 	SOFTUPDATES		# Enable FFS soft updates support
> options 	UFS_ACL			# Support for access control lists
> options 	UFS_DIRHASH		# Improve performance on big directories
> options 	MD_ROOT			# MD is a potential root device
> options 	MSDOSFS			# MSDOS Filesystem
> options 	CD9660			# ISO 9660 Filesystem
> options 	PROCFS			# Process filesystem (requires PSEUDOFS)
> options 	PSEUDOFS		# Pseudo-filesystem framework
> options         UNIONFS
> options 	COMPAT_43		# Compatible with BSD 4.3 [KEEP THIS!]
> options 	COMPAT_FREEBSD4		# Compatible with FreeBSD4
> options         COMPAT_LINUX		# Enable Linux ABI emulation
> 
> options 	SCSI_DELAY=15000	# Delay (in ms) before probing SCSI
> options 	KTRACE			# ktrace(1) support
> 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         QUOTA
> 
> 
> # Debugging for use in -current
> # options 	DDB			# Enable the kernel debugger
> # options 	INVARIANTS		# Enable calls of extra sanity checking
> # options 	INVARIANT_SUPPORT	# Extra sanity checks of internal structures, required by INVARIANTS
> # options 	WITNESS			# Enable checks to detect deadlocks and cycles
> # options 	WITNESS_SKIPSPIN	# Don't run witness on spinlocks for speed
> 
> # To make an SMP kernel, the next two are needed
> options 	SMP		# Symmetric MultiProcessor Kernel
> device		apic		# I/O APIC
> 
> device		isa
> device		pci
> 
> # Floppy drives
> device		fdc
> 
> # ATA and ATAPI devices
> device		ata
> device		atadisk		# ATA disk drives
> device		atapicd		# ATAPI CDROM drives
> options 	ATA_STATIC_ID	# Static device numbering
> 
> # SCSI peripherals
> device		scbus		# SCSI bus (required for SCSI)
> device		ch		# SCSI media changers
> device		da		# Direct Access (disks)
> device		sa		# Sequential Access (tape etc)
> device		cd		# CD
> device		pass		# Passthrough device (direct SCSI access)
> device		ses		# SCSI Environmental Services (and SAF-TE)
> 
> # RAID controllers interfaced to the SCSI subsystem
> device		ips		# IBM (Adaptec) ServeRAID
> 
> 
> # atkbdc0 controls both the keyboard and the PS/2 mouse
> device		atkbdc		# AT keyboard controller
> device		atkbd		# AT keyboard
> device		psm		# PS/2 mouse
> 
> device		vga		# VGA video card driver
> 
> device		splash		# Splash screen and screen saver support
> 
> # 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
> 
> # Power management support (see NOTES for more options)
> #device		apm
> # Add suspend/resume support for the i8254.
> #device		pmtimer
> 
> # 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
> #device		plip		# TCP/IP over parallel
> #device		ppi		# Parallel port interface device
> #device		vpo		# Requires scbus and da
> 
> # If you've got a "dumb" serial or parallel PCI card that is
> # supported by the puc(4) glue driver, uncomment the following
> # line to enable it (connects to the sio and/or ppc drivers):
> #device         puc
> 
> # PCI Ethernet NICs.
> device		em		# Intel PRO/1000 adapter Gigabit Ethernet Card
> 
> # Pseudo devices - the number indicates how many units to allocate.
> device		random		# Entropy device
> device		loop		# Network loopback
> device		ether		# Ethernet support
> #device          vlan
> #device		sl		# Kernel SLIP
> #device		ppp		# Kernel PPP
> device		tun		# Packet tunnel.
> device		pty		# Pseudo-ttys (telnet etc)
> device		md		# Memory "disks"
> # device          pf
> # device          pflog
> # device          pfsync
> 
> 
> # The `bpf' device enables the Berkeley Packet Filter.
> # Be aware of the administrative consequences of enabling this!
> device		bpf		# Berkeley packet filter
> 
> #
> options         PFIL_HOOKS              # pfil(9) framework
> options         IPFILTER
> options         IPFILTER_LOG
> options         IPFILTER_DEFAULT_BLOCK
> #options         IPSTEALTH
> options         RANDOM_IP_ID
> options         TCP_DROP_SYNFIN
> 
> 
> 
> ------------------------------------------------------------------------
> 
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