Date: Tue, 25 Dec 2001 12:34:59 GMT From: Russell Vincent <rv@openusenet.org> To: FreeBSD-gnats-submit@freebsd.org Subject: kern/33143: Kernel panic in uhci_abort_xfer_end Message-ID: <200112251234.fBPCYxQ00553@raven.pani.co.uk>
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>Number: 33143
>Category: kern
>Synopsis: Kernel panic in uhci_abort_xfer_end
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Dec 24 04:40:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator: Russell Vincent
>Release: FreeBSD 4.5-PRERELEASE i386
>Organization:
>Environment:
System: FreeBSD raven.pani.co.uk 4.5-PRERELEASE FreeBSD 4.5-PRERELEASE #13: Mon Dec 24 11:06:48 GMT 2001 rv@raven.pani.co.uk:/usr/obj/usr/src/sys/RV i386
>Description:
I am occasionally getting a kernel panic in uhci_abort_xfer_end.
The only USB device I have is an Alcatel ADSL Speedtouch USB
modem and am currently getting packet loss on my line which
I suspect may be somehow causing the modem to cause the USB
bus to lock up. Anyway, that is a different problem, but
probably shouldn't cause a kernel panic, hence this report.
The second (ffs related) panic may also be interesting.
If you require any more information than what I have supplied
here, please don't hesitate to ask.
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This GDB was configured as "i386-unknown-freebsd"...
IdlePTD at phsyical address 0x0046a000
initial pcb at physical address 0x003b5c60
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x32001003
fault code = supervisor read, page not present
instruction pointer = 0x8:0x32001003
stack pointer = 0x10:0xc0372518
frame pointer = 0x10:0xc0372538
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = bio
trap number = 12
panic: page fault
syncing disks...
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x30
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc029ccc8
stack pointer = 0x10:0xc0372304
frame pointer = 0x10:0xc037230c
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = Idle
interrupt mask = bio
trap number = 12
panic: page fault
Uptime: 1h20m3s
dumping to dev #ad/1, offset 524448
dump ata0: resetting devices .. done
255 254 253 252 251 250 249 248 247 246 245 244 243 242 241 240 239 238 237 236 235 234 233 232 231 230 229 228 227 226 225 224 223 222 221 220 219 218 217 216 215 214 213 212 211 210 209 208 207 206 205 204 203 202 201 200 199 198 197 196 195 194 193 192 191 190 189 188 187 186 185 184 183 182 181 180 179 178 177 176 175 174 173 172 171 170 169 168 167 166 165 164 163 162 161 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] 80 79 78 77 76 75 [CTRL-C to abort] 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 [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] 28 27 26 [CTRL-C to abort]!
25 24 23 22 21 [CTRL-C to abort] 20 19 [CTRL-C to abort] 18 17 [CTRL-C to abort] 16 [CTRL-C to abort] 15 14 [CTRL-C to abort] 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:473
473 if (dumping++) {
(kgdb) where
#0 dumpsys () at /usr/src/sys/kern/kern_shutdown.c:473
#1 0xc0193b1b in boot (howto=260) at /usr/src/sys/kern/kern_shutdown.c:313
#2 0xc0193ef0 in poweroff_wait (junk=0xc036994c, howto=-1070164881)
at /usr/src/sys/kern/kern_shutdown.c:581
#3 0xc030a016 in trap_fatal (frame=0xc03722c4, eva=48)
at /usr/src/sys/i386/i386/trap.c:956
#4 0xc0309ce9 in trap_pfault (frame=0xc03722c4, usermode=0, eva=48)
at /usr/src/sys/i386/i386/trap.c:849
#5 0xc03098a7 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi = 0,
tf_esi = -1048494080, tf_ebp = -1070128372, tf_isp = -1070128400,
tf_ebx = -1069938500, tf_edx = 6832256, tf_ecx = -838711680, tf_eax = 0,
tf_trapno = 12, tf_err = 0, tf_eip = -1071002424, tf_cs = 8,
tf_eflags = 66050, tf_esp = -1048494080, tf_ss = -1048494080})
at /usr/src/sys/i386/i386/trap.c:448
#6 0xc029ccc8 in acquire_lock (lk=0xc03a08bc)
at /usr/src/sys/ufs/ffs/ffs_softdep.c:271
#7 0xc02a0d2c in softdep_update_inodeblock (ip=0xc1814000, bp=0xc68bd6d0,
waitfor=0) at /usr/src/sys/ufs/ffs/ffs_softdep.c:3775
#8 0xc029be11 in ffs_update (vp=0xce024680, waitfor=0)
at /usr/src/sys/ufs/ffs/ffs_inode.c:106
#9 0xc02a5735 in ffs_fsync (ap=0xc03723b8)
at /usr/src/sys/ufs/ffs/ffs_vnops.c:273
#10 0xc02a4067 in ffs_sync (mp=0xc1673400, waitfor=2, cred=0xc0e3c900,
p=0xc03d1e60) at vnode_if.h:558
#11 0xc01c336b in sync (p=0xc03d1e60, uap=0x0)
at /usr/src/sys/kern/vfs_syscalls.c:547
#12 0xc01938ce in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:234
#13 0xc0193ef0 in poweroff_wait (junk=0xc036994c, howto=-1070164881)
at /usr/src/sys/kern/kern_shutdown.c:581
#14 0xc030a016 in trap_fatal (frame=0xc03724d8, eva=838864899)
at /usr/src/sys/i386/i386/trap.c:956
#15 0xc0309ce9 in trap_pfault (frame=0xc03724d8, usermode=0, eva=838864899)
at /usr/src/sys/i386/i386/trap.c:849
#16 0xc03098a7 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi = 0,
tf_esi = -1048360832, tf_ebp = -1070127816, tf_isp = -1070127868,
tf_ebx = -1050855680, tf_edx = -1050887671, tf_ecx = -1048360772,
tf_eax = 838864899, tf_trapno = 12, tf_err = 0, tf_eip = 838864899,
tf_cs = 8, tf_eflags = 66118, tf_esp = -1070850452, tf_ss = -1050855936})
at /usr/src/sys/i386/i386/trap.c:448
#17 0x32001003 in ?? ()
#18 0xc02bc8ad in uhci_abort_xfer_end (v=0xc1834880)
at /usr/src/sys/dev/usb/uhci.c:1634
#19 0xc019994d in softclock () at /usr/src/sys/kern/kern_timeout.c:131
>How-To-Repeat:
Difficult to duplicate, but I seem to be able to do it occasionally
by doing multiple downloads on my ADSL line, hence causing more
packet loss, which eventually causes the modem lockup and sometimes
the kernel panic.
>Fix:
Unknown
>Release-Note:
>Audit-Trail:
>Unformatted:
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