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Date:      Sun, 1 Sep 2002 14:11:37 -0300 (ADT)
From:      "Marc G. Fournier" <scrappy@hub.org>
To:        freebsd-stable@freebsd.org
Subject:   Crash with KVM monitoring in place ...
Message-ID:  <20020901135655.L27764-100000@hub.org>

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Morning all ...

Okay, according to my logs, here is what I have:

Aug 31 22:13:47 venus scrappy[35952]: Starting KVM Monitoring
Aug 31 22:13:47 venus scrappy[35962]: kernel_vm_end: 0xf6400000
Aug 31 23:00:03 venus scrappy[41669]: kernel_vm_end: 0xf6800000
Sep  1 00:00:25 venus scrappy[50135]: kernel_vm_end: 0xf7000000

Note that I modified my script so that it only reports to syslog when the
value changes, instead of every minute ...

On the other server, she's still running with:

Sep  1 02:05:30 jupiter root[93918]: kernel_vm_end: 0xfa000000
Sep  1 02:07:32 jupiter root[95929]: kernel_vm_end: 0xfa400000
Sep  1 02:09:34 jupiter root[98699]: kernel_vm_end: 0xfa800000
Sep  1 02:10:34 jupiter root[1076]: kernel_vm_end: 0xfac00000
Sep  1 04:30:42 jupiter root[33295]: kernel_vm_end: 0xfb000000

Both server(s) are running kernels updated to sources of last night.

Next?

/var/log/messages shows several reboots:

Sep  1 00:29:21 venus sm-mta[54119]: g811TILb000223: SYSERR(root): makeconnection_ds: unsafe domain socket: No such file or directory
Sep  1 01:05:43 venus /kernel:
Sep  1 01:05:43 venus /kernel:
Sep  1 01:05:43 venus /kernel: Fatal trap 12: page fault while in kernel mode
Sep  1 01:05:43 venus /kernel: mp_lock = 00000002; cpuid = 0; lapic.id = 00000000
Sep  1 01:05:43 venus /kernel: fault virtual address    = 0xef27be58
Sep  1 01:05:43 venus /kernel: fault code               = supervisor read, page not present
Sep  1 01:05:43 venus /kernel: instruction pointer      = 0x8:0xc01749ff
Sep  1 01:05:43 venus /kernel: stack pointer            = 0x10:0xf5850d74
Sep  1 01:05:43 venus /kernel: frame pointer            = 0x10:0xf5850d8c
Sep  1 01:05:43 venus /kernel: code segment             = base 0x0, limit 0xfffff, type 0x1b
Sep  1 01:05:43 venus /kernel: = DPL 0, pres 1, def32 1, gran 1
Sep  1 01:05:43 venus /kernel: processor eflags = interrupt enabled, resume, IOPL = 0
Sep  1 01:05:43 venus /kernel: current process          = 47365 (pickup)
Sep  1 01:05:43 venus /kernel: interrupt mask           = none <- SMP: XXX
Sep  1 01:05:43 venus /kernel: trap number              = 12
Sep  1 01:05:43 venus /kernel: panic: page fault
Sep  1 01:05:43 venus /kernel: mp_lock = 00000002; cpuid = 0; lapic.id = 00000000
Sep  1 01:05:43 venus /kernel: boot() called on cpu#0
Sep  1 01:05:43 venus /kernel:
Sep  1 01:05:43 venus /kernel: syncing disks...

venus# nm -n /kernel | grep c01749ff
venus# nm -n /kernel | grep c01749f
venus# nm -n /kernel | grep c01749
c01749d0 t vn_poll


Sep  1 01:05:43 venus /kernel:
Sep  1 01:05:43 venus /kernel: Fatal trap 12: page fault while in kernel mode
Sep  1 01:05:43 venus /kernel: mp_lock = 00000003; cpuid = 0; lapic.id = 00000000
Sep  1 01:05:43 venus /kernel: fault virtual address    = 0xef27f514
Sep  1 01:05:43 venus /kernel: fault code               = supervisor read, page not present
Sep  1 01:05:43 venus /kernel: instruction pointer      = 0x8:0xc016e6fb
Sep  1 01:05:43 venus /kernel: stack pointer            = 0x10:0xf5850c0c
Sep  1 01:05:43 venus /kernel: frame pointer            = 0x10:0xf5850c28
Sep  1 01:05:43 venus /kernel: code segment             = base 0x0, limit 0xfffff, type 0x1b
Sep  1 01:05:43 venus /kernel: = DPL 0, pres 1, def32 1, gran 1
Sep  1 01:05:43 venus /kernel: processor eflags = interrupt enabled, resume, IOPL = 0
Sep  1 01:05:43 venus /kernel: current process          = 47365 (pickup)
Sep  1 01:05:43 venus /kernel: interrupt mask           = none <- SMP: XXX
Sep  1 01:05:43 venus /kernel: trap number              = 12
Sep  1 01:05:43 venus /kernel: panic: page fault
Sep  1 01:05:43 venus /kernel: mp_lock = 00000003; cpuid = 0; lapic.id = 00000000
Sep  1 01:05:43 venus /kernel: boot() called on cpu#0
Sep  1 01:05:43 venus /kernel: Uptime: 4h26m4s
Sep  1 01:05:43 venus /kernel: amr0: flushing cache...done
Sep  1 01:05:43 venus /kernel: Automatic reboot in 15 seconds - press a key on the console to abort


venus# nm -n /kernel | grep c016e6fb
venus# nm -n /kernel | grep c016e6f
venus# nm -n /kernel | grep c016e6
venus# nm -n /kernel | grep c016e
c016e028 t sysctl_ovfs_conf
c016e08c T vfs_mountedon
c016e0a8 T vfs_unmountall
c016e14c t vfs_hang_addrlist
c016e334 t vfs_free_netcred
c016e35c t vfs_free_addrlist
c016e3b8 T vfs_export
c016e42c T vfs_setpublicfs
c016e598 T vfs_export_lookup
c016e5f0 T vfs_msync
c016e720 T vfs_object_create
c016e758 T vfree
c016e7f4 T vbusy
c016e858 T vn_pollrecord
c016e8cc T vn_pollevent
c016e924 T vn_pollgone
c016e968 T vfs_allocate_syncvnode
c016ea40 t sync_fsync
c016ead0 t sync_inactive
c016eae4 t sync_reclaim
c016eb30 t sync_print
c016eb6c T vn_todev
c016eb8c T vn_isdisk
c016ebf8 T NDFREE
c016ed14 T mount


Sep  1 01:05:43 venus /kernel: Rebooting...
Sep  1 01:05:43 venus /kernel: cpu_reset called on cpu#0
Sep  1 01:05:43 venus /kernel: cpu_reset: Stopping other CPUs
Sep  1 01:05:46 venus /kernel: fxp0: promiscuous mode enabled
Sep  1 01:05:46 venus trafd[239]: (fxp0) traffic collector started
Sep  1 01:24:08 venus /kernel:
Sep  1 01:24:08 venus /kernel:
Sep  1 01:24:08 venus /kernel: Fatal trap 12: page fault while in kernel mode
Sep  1 01:24:08 venus /kernel: mp_lock = 01000002; cpuid = 1; lapic.id = 01000000
Sep  1 01:24:08 venus /kernel: fault virtual address    = 0x5
Sep  1 01:24:08 venus /kernel: fault code               = supervisor read, page not present
Sep  1 01:24:08 venus /kernel: instruction pointer      = 0x8:0xc01e5d4b
Sep  1 01:24:08 venus /kernel: stack pointer            = 0x10:0xf3892d00
Sep  1 01:24:08 venus /kernel: frame pointer            = 0x10:0xf3892d10
Sep  1 01:24:08 venus /kernel: code segment             = base 0x0, limit 0xfffff, type 0x1b
Sep  1 01:24:08 venus /kernel: = DPL 0, pres 1, def32 1, gran 1
Sep  1 01:24:08 venus /kernel: processor eflags = interrupt enabled, resume, IOPL = 0
Sep  1 01:24:08 venus /kernel: current process          = 12787 (master)
Sep  1 01:24:08 venus /kernel: interrupt mask           = net bio cam  <- SMP: XXX
Sep  1 01:24:08 venus /kernel: trap number              = 12
Sep  1 01:24:08 venus /kernel: panic: page fault
Sep  1 01:24:08 venus /kernel: mp_lock = 01000002; cpuid = 1; lapic.id = 01000000
Sep  1 01:24:08 venus /kernel: boot() called on cpu#1
Sep  1 01:24:08 venus /kernel:
Sep  1 01:24:08 venus /kernel: syncing disks... 219 103 99 99 99 99 99 99 99 78 78 78 78 78 78 78 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52 52
Sep  1 01:24:08 venus /kernel: gi18>a.out ldconfig path: /usr/lib/aout /usr/lib/compat/aout /usr/X11R6/lib/aout
Sep  1 01:24:08 venus /kernel: cpu_reset_proxy: Grabbed mp lock for BSP
Sep  1 01:24:08 venus /kernel: cpu_reset_proxy: Stopped CPU 1

venus# nm -n /kernel | grep c01e5d4b
venus# nm -n /kernel | grep c01e5d4
venus# nm -n /kernel | grep c01e5d
c01e5d04 T pmap_remove_pages



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