Date: Wed, 7 Mar 2001 12:17:01 +0800 From: AlleyOop <ml@alleyoop.m8.ntu.edu.tw> To: freebsd-questions@FreeBSD.ORG Subject: every day kernel panic in "setlock" Message-ID: <20010307121701.A5577@alleyoop.m8.ntu.edu.tw>
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Hi all:
Excuse me if here is the wrong place to report this kind question.
Our machine is dual P3-750 with 2.5 GB RAM,
running bbsd for about 3000-4000 on-line in the same time.
Meanwhile , there will be over 4000 process .
Recently , we update machine to 4.2-stable , and tuning some kernel
variable , but it crashes every night when there are over 3800 people
on line.
We do not have enough swap to dump kernel , so we can just get some relative
messages. Can anybody tell me what is the main problem about the kernel
tuning or something.
(PS. the bbsd process will use a lot SHM ..
and the machine will quickly crash if the VM_KMEM_SIZE_MAX set to too
large )
regards,
alleyoop
instruction pointer = 0x8:0xc02305e5
nm -n kernel |grep c0230
c0230440 T pmap_addr_hint
c0230468 T pmap_pte
c02304a4 T pmap_kenter
c02304cc T pmap_kremove
c02304ec T procfs_read_regs
c023050c T procfs_write_regs
c023052c T procfs_read_dbregs
c023054c T procfs_write_dbregs
c023056c T procfs_read_fpregs
c023058c T procfs_write_fpregs
c02305ac T procfs_sstep
c02305c8 T s_lock_init
c02305d4 T s_lock
c02305d8 t setlock
c02305f9 t wait
c0230600 t gotit
c0230604 t bad_slock
c0230616 t bsl1
c0230644 T s_lock_try
c0230660 T s_unlock
c023066c T s_lock_np
c0230684 T s_unlock_np
c0230690 T generic_bzero
c02306ac T i586_bzero
c02306ea t i586_bz1
c02306fb t i586_bz2
config in kernel
machine i386
cpu I586_CPU
cpu I686_CPU
ident SimFarm
maxusers 512
options INET #InterNETworking
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options SOFTUPDATES #Enable FFS soft updates support
options MFS #Memory Filesystem
options NFS #Network Filesystem
options CD9660 #ISO 9660 Filesystem
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=1000 #Delay (in ms) before probing SCSI
options UCONSOLE #Allow users to grab the console
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options P1003_1B #Posix P1003_1B real-time extensions
options _KPOSIX_PRIORITY_SCHEDULING
options ICMP_BANDLIM #Rate limit bad replies
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
# To make an SMP kernel, the next two are needed
options SMP # Symmetric MultiProcessor Kernel
options APIC_IO # Symmetric (APIC) I/O
device isa
device eisa
device pci
# SCSI Controllers
device ahc # AHA2940 and onboard AIC7xxx devices
device sym # NCR/Symbios Logic (newer chipsets)
# SCSI peripherals
device scbus # SCSI bus (required)
device da # Direct Access (disks)
#device sa # Sequential Access (tape etc)
#device cd # CD
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc0 at isa? port IO_KBD
device atkbd0 at atkbdc? irq 1 flags 0x1
device psm0 at atkbdc? irq 12
device vga0 at isa?
# splash screen/screen saver
# pseudo-device splash
# syscons is the default console driver, resembling an SCO console
device sc0 at isa? flags 0x100
# Floating point support - do not disable.
device npx0 at nexus? port IO_NPX irq 13
# PCI Ethernet NICs.
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
# Pseudo devices - the number indicates how many units to allocated.
pseudo-device loop # Network loopback
pseudo-device ether # Ethernet support
pseudo-device pty # Pseudo-ttys (telnet etc)
pseudo-device vinum #Vinum concat/mirror/raid driver
#options VINUMDEBUG #enable Vinum debugging hooks
options AHC_ALLOW_MEMIO
options NMBCLUSTERS=20480
options PMAP_SHPGPERPROC=720
options SHMMAXPGS=8192
options SHMALL=8192
#options VM_KMEM_SIZE_MAX="(350*1024*1024)"
options VM_KMEM_SIZE_MAX="(180*1024*1024)"
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