kern/114808: Kernel panic when use USB SpeedTouch ADSL modem (net/pppoa)

[Slawa Olhovchenkov]

>Number:         114808
>Category:       kern
>Synopsis:       Kernel panic when use USB SpeedTouch ADSL modem (net/pppoa)
>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 Jul 22 14:20:01 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Slawa Olhovchenkov
>Release:        7.0-CURRENT
>Organization:
>Environment:
FreeBSD notebook.acropolis.ru 7.0-CURRENT FreeBSD 7.0-CURRENT #1: Sat Jun  2 08:46:52 MSD 2007     slw at notebook.acropolis.ru:/usr/obj/usr/src/sys/BOOK  i386

>Description:
After run pppoa3 kernel panic with diagnostic:

tap0: bpf attached
tap0: Ethernet address: 00:bd:8b:ee:19:00
Sleeping thread (tid 100065, pid 6224) owns a non-sleepable lock
sched_switch(c2c99400,0,1,3f2c8b1d,152,...) at sched_switch+0xe0
mi_switch(1,0,c2c99400,d4be7a2c,c05362b6,...) at mi_switch+0x137
sleepq_switch(1,d4be7a64,c0511fa5,c070d594,3,...) at sleepq_switch+0x8b
sleepq_timedwait(c070d594,3,c08857f3,2,0,...) at sleepq_timedwait+0x36
_sleep(c070d594,0,0,c08857f3,3,...) at _sleep+0x2b5
pause(c08857f3,3,d4be7ac0,c08786a6,c29f4000,...) at pause+0x30
usb_delay_ms(c29f4000,2,1388,d4be7b2c,0,...) at usb_delay_ms+0x5e
uhci_abort_xfer(d4be7ad8,c0874749,c2a0fa00,c2b962bc,d4be7af0,...) at uhci_abort_xfer+0x166
uhci_device_intr_abort(c2a0fa00,c2b962bc,d4be7af0,c0890dff,c310c200,...) at uhci_device_intr_abort+0x1e
usbd_abort_pipe(c310c200,0,c3897600,0,d4be7b1c,...) at usbd_abort_pipe+0x29
ugenpurge(c3897600,c0875807,c2b94500,d4be7b2c,0,...) at ugenpurge+0x5f
destroy_devl(d4be7b3c,c0890883,c3897600,1,3,...) at destroy_devl+0x89
destroy_dev(c3897600,1,3,c2b96000,d4be7bc4,...) at destroy_dev+0x10
ugen_destroy_devnodes(c2b9419c,d4be7bac,2,0,0,...) at ugen_destroy_devnodes+0x53
ugenioctl(c2b8d600,c00c5567,c2b5b950,3,c2c99400,...) at ugenioctl+0x46e
giant_ioctl(c2b8d600,c00c5567,c2b5b950,3,c2c99400,...) at giant_ioctl+0x7a
devfs_ioctl_f(c304be58,c00c5567,c2b5b950,c310ae80,c2c99400,...) at devfs_ioctl_f+0xcb
kern_ioctl(c2c99400,1,c00c5567,c2b5b950,1000000,...) at kern_ioctl+0x33e
ioctl(c2c99400,d4be7cfc,c,c2c99400,c,...) at ioctl+0x134
syscall(d4be7d38) at syscall+0x30c
Xint0x80_syscall() at Xint0x80_syscall+0x20
--- syscall (54, FreeBSD ELF32, ioctl), eip = 0x8816a03b, esp = 0xbfbfeb9c, ebp = 0xbfbfebc8 ---
panic: sleeping thread
KDB: enter: panic
panic: from debugger
Uptime: 28m26s
Physical memory: 494 MB
Dumping 68 MB: 53 37 21 5


>How-To-Repeat:
Connect SpeedTouch and run pppoa3
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: