Date: Sat, 23 Mar 2002 09:22:13 -0500 (EST) From: Robert Watson <rwatson@FreeBSD.org> To: Kris Kennaway <kris@obsecurity.org> Cc: current@FreeBSD.org, jeffr@FreeBSD.org Subject: Re: uma panic Message-ID: <Pine.NEB.3.96L.1020323092147.14139V-100000@fledge.watson.org> In-Reply-To: <20020323004158.A16726@xor.obsecurity.org>
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I think I've run into this pre-UMA, so suspect it's not a UMA panic. I
could be wrong.
Robert N M Watson FreeBSD Core Team, TrustedBSD Project
robert@fledge.watson.org NAI Labs, Safeport Network Services
On Sat, 23 Mar 2002, Kris Kennaway wrote:
> I upgraded the bento package building cluster to a more recent
> -current to try and get packages building again (every other snapshot
> I've tried for the last week has either been broken or does not
> build). One of the client machines panicked after about an hour under
> load:
>
> The kernel and coredump are available for further debugging if needed.
>
> Kris
>
> panic messages:
> ---
> Fatal trap 12: page fault while in kernel mode
> fault virtual address = 0x1c
> fault code = supervisor read, page not present
> instruction pointer = 0x8:0xc0204d43
> stack pointer = 0x10:0xcdc39c60
> frame pointer = 0x10:0xcdc39c6c
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def32 1, gran 1
> processor eflags = resume, IOPL = 0
> current process = 12 (swi6: tty:sio clock)
> trap number = 12
> panic: page fault
>
> syncing disks... panic: bdwrite: buffer is not busy
> Uptime: 1h0m1s
>
> dumping to dev ad0b, offset 1575424
> dump ata0: resetting devices .. done
> 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217
> 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179
> 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141
> 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103
> 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
> 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
> ---
> #0 dumpsys () at /local0/scratch/usr/src/sys/kern/kern_shutdown.c:505
> 505 /local0/scratch/usr/src/sys/kern/kern_shutdown.c: No such file or directory.
> (kgdb) bt
> #0 dumpsys () at /local0/scratch/usr/src/sys/kern/kern_shutdown.c:505
> #1 0xc020d180 in boot (howto=260) at /local0/scratch/usr/src/sys/kern/kern_shutdown.c:337
> #2 0xc020d61f in panic (fmt=0xc0378461 "bdwrite: buffer is not busy") at /local0/scratch/usr/src/sys/kern/kern_shutdown.c:647
> #3 0xc0242d88 in bdwrite (bp=0xc7741d18) at /local0/scratch/usr/src/sys/kern/vfs_bio.c:928
> #4 0xc02dc1ba in ffs_update (vp=0xcf1761b8, waitfor=0) at /local0/scratch/usr/src/sys/ufs/ffs/ffs_inode.c:120
> #5 0xc02e9806 in ffs_fsync (ap=0xcdc39b1c) at /local0/scratch/usr/src/sys/ufs/ffs/ffs_vnops.c:284
> #6 0xc02e7d8a in ffs_sync (mp=0xceb73000, waitfor=2, cred=0xc7691980, td=0xc03b4820) at vnode_if.h:441
> #7 0xc025030d in sync (td=0xc03b4820, uap=0x0) at /local0/scratch/usr/src/sys/kern/vfs_syscalls.c:674
> #8 0xc020cdcc in boot (howto=256) at /local0/scratch/usr/src/sys/kern/kern_shutdown.c:246
> #9 0xc020d61f in panic (fmt=0xc039681e "%s") at /local0/scratch/usr/src/sys/kern/kern_shutdown.c:647
> #10 0xc0334bd4 in trap_fatal (frame=0xcdc39c20, eva=28) at /local0/scratch/usr/src/sys/i386/i386/trap.c:841
> #11 0xc03348fd in trap_pfault (frame=0xcdc39c20, usermode=0, eva=28) at /local0/scratch/usr/src/sys/i386/i386/trap.c:755
> #12 0xc0334387 in trap (frame={tf_fs = -841940968, tf_es = 16, tf_ds = -842858480, tf_edi = 36, tf_esi = 0, tf_ebp = -842818452, tf_isp = -842818484,
> tf_ebx = -841047808, tf_edx = -841047712, tf_ecx = -841047806, tf_eax = -841048064, tf_trapno = 12, tf_err = 0, tf_eip = -1071624893, tf_cs = 8,
> tf_eflags = 65538, tf_esp = -853281024, tf_ss = -949504404}) at /local0/scratch/usr/src/sys/i386/i386/trap.c:426
> #13 0xc0204d43 in propagate_priority (td=0xcd23f700) at /local0/scratch/usr/src/sys/kern/kern_mutex.c:161
> #14 0xc02050c3 in _mtx_lock_sleep (m=0xc767b66c, opts=0, file=0x0, line=0) at /local0/scratch/usr/src/sys/kern/kern_mutex.c:389
> #15 0xc02ff746 in zone_timeout (zone=0xc767b5a0) at /local0/scratch/usr/src/sys/vm/uma_core.c:232
> #16 0xc030070f in zone_foreach (zfunc=0xc02ff6c8 <zone_timeout>) at /local0/scratch/usr/src/sys/vm/uma_core.c:1021
> #17 0xc02ff6a5 in uma_timeout (unused=0x0) at /local0/scratch/usr/src/sys/vm/uma_core.c:193
> #18 0xc02174af in softclock (dummy=0x0) at /local0/scratch/usr/src/sys/kern/kern_timeout.c:187
> #19 0xc01fe2b0 in ithread_loop (arg=0xcd261c80) at /local0/scratch/usr/src/sys/kern/kern_intr.c:533
> #20 0xc01fd506 in fork_exit (callout=0xc01fe114 <ithread_loop>, arg=0xcd261c80, frame=0xcdc39d48) at /local0/scratch/usr/src/sys/kern/kern_fork.c:796
> (kgdb)
>
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