I'm using USB modem C-motech CCU-550 under RELENG_6 with the simple patch: --- sys/dev/usb/usbdevs.orig Fri May 4 00:35:48 2007 +++ sys/dev/usb/usbdevs Wed May 23 22:47:27 2007 @@ -773,6 +773,7 @@ /* CMOTECH products */ product CMOTECH CNU510 0x5141 CMOTECH CDMA Technologies USB modem +product CMOTECH CCU550 0x5533 CDMA 2000 1xRTT/1xEVDO USB modem product CMOTECH CNU550 0x5543 CDMA 2000 1xRTT/1xEVDO USB modem /* Compaq products */ --- sys/dev/usb/usb_quirks.c.orig Fri May 4 00:35:48 2007 +++ sys/dev/usb/usb_quirks.c Wed May 23 22:48:18 2007 @@ -82,6 +82,8 @@ { USB_VENDOR_LOGITECH, USB_PRODUCT_LOGITECH_UN53B, ANY, { UQ_NO_STRINGS }}, { USB_VENDOR_CMOTECH, USB_PRODUCT_CMOTECH_CNU510, ANY, { UQ_ASSUME_CM_OVER_DATA }}, + { USB_VENDOR_CMOTECH, USB_PRODUCT_CMOTECH_CCU550, + ANY, { UQ_ASSUME_CM_OVER_DATA }}, { USB_VENDOR_CMOTECH, USB_PRODUCT_CMOTECH_CNU550, ANY, { UQ_ASSUME_CM_OVER_DATA }}, { USB_VENDOR_CURITEL, USB_PRODUCT_CURITEL_HX550C, Modems works, but I'm getting seldom irregular panics like this: #11 0xc049d313 in panic (fmt=0xc05f4cc3 "trying to sleep while sleeping is prohibited") at /usr/RELENG_6/src/sys/kern/kern_shutdown.c:549 td = (struct thread *) 0xc2125300 bootopt = 256 newpanic = 1 ap = 0xcbb7facc "\001" buf = "trying to sleep while sleeping is prohibited", '\0' <repeats 211 times> #12 0xc04ba7c0 in sleepq_add (wchan=0xc21fd900, lock=0x0, wmesg=0x12 <Address 0x12 out of bounds>, flags=0) at /usr/RELENG_6/src/sys/kern/subr_sleepqueue.c:278 sc = (struct sleepqueue_chain *) 0xc064a9a8 sq = (struct sleepqueue *) 0xc1015000 td = (struct thread *) 0xc2125300 #13 0xc04a2b04 in msleep (ident=0xc21fd900, mtx=0x0, priority=76, wmesg=0xc07943eb "usbsyn", timo=0) at /usr/RELENG_6/src/sys/kern/kern_synch.c:191 _giantcnt = 1 Giant__wf = 0x200 <Address 0x200 out of bounds> Giant__wl = -1038100187 td = (struct thread *) 0xc2125300 p = (struct proc *) 0x1 catch = 0 rval = 0 flags = 0 mtx__wf = 0xc21fd970 "" mtx__wl = 0 #14 0xc07862b5 in usbd_transfer (xfer=0xc21fd900) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/usbdi.c:344 pipe = 0xc2385300 err = USBD_IN_PROGRESS size = 0 #15 0xc0786aeb in usbd_do_request_flags_pipe (dev=0xc2385380, pipe=0x12, req=0xcbb7fbbc, data=0x0, flags=0, actlen=0x0, timeout=5000) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/usbdi.c:982 xfer = 0xc21fd900 err = USBD_NORMAL_COMPLETION #16 0xc0786bd0 in usbd_do_request_flags (dev=0x12, req=0xcbb7fbbc, data=0x0, flags=0, actlen=0x0, timo=5000) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/usbdi.c:953 No locals. #17 0xc0786bee in usbd_do_request (dev=0xc2385380, req=0xcbb7fbbc, data=0x0) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/usbdi.c:945 No locals. #18 0xc07c1031 in umodem_set_line_state (sc=0x0) at /usr/RELENG_6/src/sys/modules/umodem/../../dev/usb/umodem.c:703 req = {bmRequestType = 33 '!', bRequest = 34 '"', wValue = "\001", wIndex = "\000", wLength = "\000"} ls = 18 #19 0xc07c10bb in umodem_set (addr=0xc23a6d00, portno=-1, reg=18, onoff=0) at /usr/RELENG_6/src/sys/modules/umodem/../../dev/usb/umodem.c:686 No locals. #20 0xc07c4cef in ucommodem (tp=0x12, sigon=0, sigoff=-1056878592) at /usr/RELENG_6/src/sys/modules/ucom/../../dev/usb/ucom.c:427 sc = (struct ucom_softc *) 0xc23a6d00 mcr = 18 msr = 18 onoff = 18 #21 0xc07c5074 in ucomstart (tp=0xc23a9000) at /usr/RELENG_6/src/sys/modules/ucom/../../dev/usb/ucom.c:552 sc = (struct ucom_softc *) 0xc23a6d00 cbp = (struct cblock *) 0x12 err = USBD_INTERRUPTED data = ( u_char *) 0xc1015000 "Copyright (c) 1992-2007 The FreeBSD Project.\nCopyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994\n\tThe Regents of the University of California. All rights reserved.\nFreeBSD is a re"... cnt = -1036349440 #22 0xc04ccfe6 in ttstart (tp=0x12) at /usr/RELENG_6/src/sys/kern/tty.c:1615 No locals. #23 0xc04ccf82 in ttyblock (tp=0xc23a9000) at /usr/RELENG_6/src/sys/kern/tty.c:1568 No locals. #24 0xc07c53ee in ucomreadcb (xfer=0xc2b55700, p=0xc23a6d00, status=3417832504) at /usr/RELENG_6/src/sys/modules/ucom/../../dev/usb/ucom.c:773 tp = (struct tty *) 0xc23a9000 err = USBD_INTERRUPTED cc = 64 cp = (u_char *) 0xc2216e00 "6\035╣цcЮ\nd\200Й26W\\\220\024*ф╡п\004╒еGN\f\201\200s\233\225Лв╙\003U═Ч\004н\006" lostcc = -877134792 #25 0xc0786a34 in usb_transfer_complete (xfer=0xc2b55700) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/usbdi.c:863 pipe = 0xc2b86b80 dmap = (usb_dma_t *) 0xc2b5573c sync = 0 erred = 0 repeat = 0 polling = 0 #26 0xc0789430 in uhci_idone (ii=0x12) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/uhci.c:1499 xfer = 0xc2b55700 upipe = (struct uhci_pipe *) 0xc2b86b80 std = (uhci_soft_td_t *) 0x0 status = 0 nstatus = 18 actlen = 64 #27 0xc0789584 in uhci_softintr (v=0xc21dd000) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/uhci.c:1374 ii = (uhci_intr_info_t *) 0xc2b55770 nextii = (uhci_intr_info_t *) 0xc2b02e70 #28 0xc078927b in uhci_intr1 (sc=0xc21dd000) at /usr/RELENG_6/src/sys/modules/usb/../../dev/usb/uhci.c:1274 status = 1 ack = 1 #29 0xc0489da2 in ithread_execute_handlers (p=0xc21d4000, ie=0xc2164280) at /usr/RELENG_6/src/sys/kern/kern_intr.c:682 ih = (struct intr_handler *) 0xc220a000 ihn = (struct intr_handler *) 0xc2237100 #30 0xc0489ed2 in ithread_loop (arg=0xc2202b30) at /usr/RELENG_6/src/sys/kern/kern_intr.c:765 intr_event = (struct intr_thread *) 0xc2202b30 ie = (struct intr_event *) 0xc2164280 td = (struct thread *) 0xc2125300 p = (struct proc *) 0xc21d4000 __func__ = "ithread_loop" #31 0xc0489010 in fork_exit (callout=0xc0489e6c <ithread_loop>, arg=0xc2202b30, frame=0xcbb7fd38) at /usr/RELENG_6/src/sys/kern/kern_fork.c:821 p = (struct proc *) 0xc21d4000 td = (struct thread *) 0x0 #32 0xc05b46cc in fork_trampoline () at /usr/RELENG_6/src/sys/i386/i386/exception.s:208 No locals. How-To-Repeat: Alas, repeatability of the bug is very poor. I'm using the modem on the notebook w/o serial port, and most panics happen during the X.org session, so computer just instantly reboots (and I can't use serial console). Luckily, several times this happened in text console, so I've managed to get a crash dump. I'm ready to provide further analysis data based on it. I've compared /sys/dev/usb contents of RELENG_6 source tree as of 4 May 2007 with current state, and I can't see changes that could improve things.
For bugs matching the following criteria: Status: In Progress Changed: (is less than) 2014-06-01 Reset to default assignee and clear in-progress tags. Mail being skipped
Keyword: crash – in lieu of summary line prefix: [panic] * bulk change for the keyword * summary lines may be edited manually (not in bulk). Keyword descriptions and search interface: <https://bugs.freebsd.org/bugzilla/describekeywords.cgi>