Date: Sun, 20 Feb 2005 20:37:43 +0100 (CET) From: Guido van Rooij <guido@gvr.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/77799: Panic on attach of a mp3 player to USB Message-ID: <20050220193743.6413BC118@gvr.gvr.org> Resent-Message-ID: <200502201940.j1KJeOgV080159@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
>Number: 77799
>Category: kern
>Synopsis: Panic on attach of a mp3 player to USB
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Feb 20 19:40:24 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator: Guido van Rooij
>Release: FreeBSD 5.3-STABLE i386
>Organization:
>Environment:
System: FreeBSD beck.gvr.org 5.3-STABLE FreeBSD 5.3-STABLE #5: Sun Feb 20 16:32:49 CET 2005 root@:/usr/src/sys/i386/compile/MOUSE i386
USB:
usb0: <Intel 82801DB (ICH4) USB controller USB-A> on uhci0
usb0: USB revision 1.0
usb1: <Intel 82801DB (ICH4) USB controller USB-B> on uhci1
usb1: USB revision 1.0
usb2: <Intel 82801DB (ICH4) USB controller USB-C> on uhci2
usb2: USB revision 1.0
ehci_pci_attach: companion usb0
ehci_pci_attach: companion usb1
ehci_pci_attach: companion usb2
usb3: EHCI version 1.0
usb3: companion controllers, 2 ports each: usb0 usb1 usb2
usb3: <EHCI (generic) USB 2.0 controller> on ehci0
usb3: USB revision 2.0
Freshly supped on Feb 19
>Description:
When I attach a gembird mp3 player, the system panics.
kernel trace:
#23 0xc04c65dc in uhci_check_intr (sc=0xc1f38000, ii=0xc2aec66c)
at ../../../dev/usb/uhci.c:1330
#24 0xc04c65ba in uhci_softintr (v=0xc1f38000) at ../../../dev/usb/uhci.c:1304
#25 0xc04d3093 in usb_schedsoftintr (bus=0x0) at ../../../dev/usb/usb.c:859
#26 0xc04c657b in uhci_intr1 (sc=0xc1f38000) at ../../../dev/usb/uhci.c:1274
#27 0xc04c63ed in uhci_intr (arg=0xc1f38000) at ../../../dev/usb/uhci.c:1189
#28 0xc051d4c7 in ithread_loop (arg=0xc1e75800)
at ../../../kern/kern_intr.c:547
#29 0xc051c256 in fork_exit (callout=0xc051d323 <ithread_loop>, arg=0x0,
frame=0x0) at ../../../kern/kern_fork.c:806
#30 0xc06c4efc in fork_trampoline () at ../../../i386/i386/exception.s:209
(frames before #23 are because of entering ddb)
(kgdb) frame 23
#23 0xc04c65dc in uhci_check_intr (sc=0xc1f38000, ii=0xc2aec66c)
at ../../../dev/usb/uhci.c:1330
1330 if (ii->xfer->status == USBD_CANCELLED ||
(kgdb) l
1325 if (ii == NULL) {
1326 printf("uhci_check_intr: no ii? %p\n", ii);
1327 return;
1328 }
1329 #endif
1330 if (ii->xfer->status == USBD_CANCELLED ||
1331 ii->xfer->status == USBD_TIMEOUT) {
1332 DPRINTF(("uhci_check_intr: aborted xfer=%p\n", ii->xfer));
1333 return;
1334 }
(kgdb) p *ii
$7 = {sc = 0xc1f38000, xfer = 0x0, stdstart = 0x0, stdend = 0x0, list = {
le_next = 0x0, le_prev = 0x0}}
So somehow, xfer == NULL
>How-To-Repeat:
Attach a gembird mp3 player
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20050220193743.6413BC118>