Date: Mon, 7 Jun 2004 16:21:05 +0800 (CST) From: Tai-hwa Liang <avatar@mmlab.cse.yzu.edu.tw> To: freebsd-current@freebsd.org Subject: T40 panics at usb_get_next_event() when ACPI is disabled Message-ID: <040607143347F.86443@www.mmlab.cse.yzu.edu.tw>
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Hello, Recent -CURRENT(cvsup'ed on May-26-2004) kernel panics when the rc script is trying to invoke /usr/sbin/usbd. It's 100% reproducible on my Thinkpad T40 when the USB optical mouse is attached and the ACPI is disabled(option 2 in the boot menu). I've tried to comment out the #ifdef DIAGNOSTIC statement around sys/dev/usb/usb.c:752; however, it seems that the extra NULL check on ue doesn't help in this case: The system still panics at the same place.... With ACPI enabled(or the USB mouse detached) during booting, the usbd would start successfully. Is there any T40 user running into the same problem on your -CURRENT? The GENERIC kernel came from 5.2.1-RELEASE doesn't seem to have this problem. For complete dmesg, please consult: http://www.mmlab.cse.yzu.edu.tw/~avatar/dmesg-noacpi.txt http://www.mmlab.cse.yzu.edu.tw/~avatar/dmesg-acpi.txt ------------------------ backtrace --------------------------- GNU gdb 5.2.1 (FreeBSD) Copyright 2002 Free Software Foundation, Inc. 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This GDB was configured as "i386-undermydesk-freebsd"... panic: from debugger panic messages: --- Fatal trap 12: page fault while in kernel mode fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x8:0xc074af0d stack pointer = 0x10:0xcdce59fc frame pointer = 0x10:0xcdce5a08 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 = 403 (usbd) kernel: type 12 trap, code=0 panic: from debugger at line 453 in file ../../../ddb/db_command.c Stack backtrace: Fatal trap 3: breakpoint instruction fault while in kernel mode instruction pointer = 0x8:0xc05a9f9d stack pointer = 0x10:0xcdce57dc frame pointer = 0x10:0xcdce57e0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = IOPL = 0 current process = 403 (usbd) panic: from debugger at line 453 in file ../../../ddb/db_command.cUptime: 15s Dumping 255 MB 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 --- Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/md/md.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/md/md.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/linux/linux.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/linux/linux.ko.debug Reading symbols from /boot/kernel/if_em.ko...done. Loaded symbols for /boot/kernel/if_em.ko Reading symbols from /boot/kernel/if_wi.ko...done. Loaded symbols for /boot/kernel/if_wi.ko Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/wlan/wlan.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/wlan/wlan.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/rc4/rc4.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/rc4/rc4.ko.debug Reading symbols from /boot/kernel/snd_ich.ko...done. Loaded symbols for /boot/kernel/snd_ich.ko Reading symbols from /boot/kernel/snd_pcm.ko...done. Loaded symbols for /boot/kernel/snd_pcm.ko Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/ums/ums.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/ums/ums.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/---Type <return> to continue, or q <return> to quit--- usb/usb.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/usb/usb.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/umass/umass.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/umass/umass.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/agp/agp.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/agp/agp.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/random/random.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/random/random.ko.debug Reading symbols from /boot/kernel/if_ath.ko...done. Loaded symbols for /boot/kernel/if_ath.ko Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/ath_hal/ath_hal.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/ath_hal/ath_hal.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/smbfs/smbfs.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/smbfs/smbfs.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/libmchain/libmchain.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/libmchain/libmchain.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/libiconv/libiconv.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/libiconv/libiconv.ko.debug Reading symbols from /boot/kernel/radeon.ko...done. Loaded symbols for /boot/kernel/radeon.ko Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/msdosfs/msdosfs.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/msdosfs/msdosfs.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/msdosfs_iconv/msdosfs_iconv.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/msdosfs_iconv/msdosfs_iconv.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/linprocfs/linprocfs.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/linprocfs/linprocfs.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/pseudofs/pseudofs.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/pseudofs/pseudofs.ko.debug Reading symbols from /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/procfs/procfs.ko.debug...done. Loaded symbols for /usr/src/sys/i386/compile/rtfm/modules/usr/src/sys/modules/procfs/procfs.ko.debug #0 doadump () at ../../../kern/kern_shutdown.c:236 236 dumping++; (kgdb) where #0 doadump () at ../../../kern/kern_shutdown.c:236 #1 0xc04c88e7 in boot (howto=260) at ../../../kern/kern_shutdown.c:370 #2 0xc04c8bf9 in __panic () at ../../../kern/kern_shutdown.c:548 #3 0xc0450bdb in db_panic () at ../../../ddb/db_command.c:453 #4 0xc0450b68 in db_command (last_cmdp=0xc061fec0, cmd_table=0xc05fa760, aux_cmd_tablep=0xc05f4db4, aux_cmd_tablep_end=0xc05f4db8) at ../../../ddb/db_command.c:348 #5 0xc0450c48 in db_command_loop () at ../../../ddb/db_command.c:475 #6 0xc04533e5 in db_trap (type=12, code=0) at ../../../ddb/db_trap.c:73 #7 0xc05a9d2d in kdb_trap (type=12, code=0, regs=0xcdce59bc) at ../../../i386/i386/db_interface.c:159 #8 0xc05b8123 in trap_fatal (frame=0xcdce59bc, eva=0) at ../../../i386/i386/trap.c:810 #9 0xc05b7e8f in trap_pfault (frame=0xcdce59bc, usermode=0, eva=0) at ../../../i386/i386/trap.c:733 #10 0xc05b7ac9 in trap (frame= {tf_fs = 24, tf_es = -842137584, tf_ds = -1067909104, tf_edi = -842114540, tf_esi = 0, tf_ebp = -842114552, tf_isp = -842114584, tf_ebx = 0, tf_edx = 19, tf_ecx = 96, tf_eax = -842114540, tf_trapno = 12, tf_err = 0, tf_eip = -1066094835, tf_cs = 8, tf_eflags = 66050, tf_esp = 0, tf_ss = 983056}) at ../../../i386/i386/trap.c:420 #11 0xc074af0d in usb_get_next_event (ue=0xcdce5a14) at /usr/src/sys/dev/usb/usb.c:752 #12 0xc074ab24 in usbread (dev=0xc062632c, uio=0xcdce5c88, flag=983056) at /usr/src/sys/dev/usb/usb.c:510 #13 0xc0490e90 in spec_read (ap=0xcdce5c18) at ../../../fs/specfs/spec_vnops.c:273 #14 0xc04909d7 in spec_vnoperate (ap=0x0) at ../../../fs/specfs/spec_vnops.c:118 #15 0xc052250d in vn_read (fp=0xc2c7d088, uio=0xcdce5c88, active_cred=0xc14f3e00, flags=0, td=0xc2afd930) at vnode_if.h:398 #16 0xc04eac8f in dofileread (td=0xc2afd930, fp=0xc2c7d088, fd=7, buf=0xbfbfeb60, nbyte=0, offset=0, flags=0) at ../../../sys/file.h:233 #17 0xc04eab83 in read (td=0xc2afd930, uap=0xcdce5d14) at ../../../kern/sys_generic.c:107 #18 0xc05b842b in syscall (frame= {tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077940696, tf_esi = -1077941416, tf_ebp = -1077941016, tf_isp = -842113676, tf_ebx = 7, tf_edx = 20, tf_ecx = -1077941584, tf_eax = 3, tf_trapno = 12, tf_err = 2, tf_eip = 671899255, tf_cs = 31, tf_eflags = 658, tf_esp = -1077941444, tf_ss = 47}) at ../../../i386/i386/trap.c:1004 #19 0x280c5e77 in ?? () ---Can't read userspace from dump, or kernel process--- (kgdb) set print pretty (kgdb) f 11 #11 0xc074af0d in usb_get_next_event (ue=0xcdce5a14) at /usr/src/sys/dev/usb/usb.c:752 752 *ue = ueq->ue; (kgdb) print ueq $1 = (struct usb_event_q *) 0x0 (kgdb) print ue $2 = (struct usb_event *) 0xcdce5a14 (kgdb)
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