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)" To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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