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Assertion !usb_packet_is_inflight(p) fails in OHCI
I'm trying to get a USB web camera working in Qemu & Raspbian. USB works and V4L shows device info correctly and capturing frames from the camera works sometimes, but mostly it crashes with error message:
qemu-system-arm: hw/usb/core.c:558: usb_packet_setup: Assertion `!usb_packet_is_inflight(p)' failed.
This looks similar to the previous bug which also caused a crash on the same kind of assertion but the culprit was XHCI: https://bugs.launchpad.net/qemu/+bug/1653384
== Versions ==
QEMU emulator version 2.9.50 (v2.9.0-303-g81b2d5c-dirty),
configured with
./configure --target-list=arm-softmmu,arm-linux-user,armeb-linux-user --enable-libusb --enable-libssh2 --enable-debug
libusb: 1.0.21
Guest: 2017-04-10-raspbian-jessie-lite.img with kernel 4.4.34 for Raspbian on Qemu
Command: /usr/local/bin/qemu-system-arm -kernel qemu-rpi-kernel/kernel-qemu-4.4.34-v4lm-jessie -cpu arm1176 -m 256 -M versatilepb -no-reboot -append "root=/dev/sda2 panic=1" -drive format=raw,file=2017-04-10-raspbian-jessie-lite.img -usb -usbdevice host:046d:0928 -net nic,model=virtio -net user,hostfwd=tcp::2222-:22
Web camera is an old Logitech QuickCam Express Etch2 (046d:0928). It works otherwise without problems.
== GDB Backtrace ==
qemu-system-arm: hw/usb/core.c:558: usb_packet_setup: Assertion `!usb_packet_is_inflight(p)' failed.
Thread 1 "qemu-system-arm" received signal SIGABRT, Aborted.
0x00007fffdea6f428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
54 ../sysdeps/unix/sysv/linux/raise.c: Tiedostoa tai hakemistoa ei ole.
(gdb) bt full
#0 0x00007fffdea6f428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
resultvar = 0
pid = 16526
selftid = 16526
#1 0x00007fffdea7102a in __GI_abort () at abort.c:89
save_stage = 2
act = {__sigaction_handler = {sa_handler = 0x4, sa_sigaction = 0x4}, sa_mask = {__val = {140737488345776,
140737488351076, 140737488345856, 48702688480, 140737352876032, 93825001457954, 558, 93825001458576, 0, 0,
140736929192332, 140736930289240, 140736930302896, 260615966, 140736930289240, 93825001457954}},
sa_flags = -135479296, sa_restorer = 0x555555e20922}
sigs = {__val = {32, 0 <repeats 15 times>}}
#2 0x00007fffdea67bd7 in __assert_fail_base (fmt=<optimized out>,
assertion=assertion@entry=0x555555e20922 "!usb_packet_is_inflight(p)",
file=file@entry=0x555555e20686 "hw/usb/core.c", line=line@entry=558,
function=function@entry=0x555555e20b90 <__PRETTY_FUNCTION__.27044> "usb_packet_setup") at assert.c:92
str = 0x5555573e0800 ""
total = 4096
#3 0x00007fffdea67c82 in __GI___assert_fail (assertion=0x555555e20922 "!usb_packet_is_inflight(p)",
file=0x555555e20686 "hw/usb/core.c", line=558,
function=0x555555e20b90 <__PRETTY_FUNCTION__.27044> "usb_packet_setup") at assert.c:101
No locals.
#4 0x0000555555b4015a in usb_packet_setup (p=0x555556e81bc8, pid=105, ep=0x55555733e180, stream=0, id=260615936,
short_not_ok=false, int_req=false) at hw/usb/core.c:558
__PRETTY_FUNCTION__ = "usb_packet_setup"
#5 0x0000555555b4f2ee in ohci_service_iso_td (ohci=0x555556e814c0, ed=0x7fffffffdda0, completion=0)
at hw/usb/hcd-ohci.c:852
int_req = false
dir = 2
len = 1023
str = 0x555555e233cf "in"
pid = 105
ret = -8788
i = -8912
dev = 0x55555733d070
ep = 0x55555733e180
iso_td = {flags = 4039218540, bp = 251170816, next = 260615872, be = 251173880, offset = {59386, 0, 6, 0, 53328,
53376, 0, 0}}
addr = 260615936
starting_frame = 38252
relative_frame_number = 0
frame_count = 0
start_offset = 59386
next_offset = 0
end_offset = 0
start_addr = 251172858
end_addr = 251173880
#6 0x0000555555b5055c in ohci_service_ed_list (ohci=0x555556e814c0, head=260608080, completion=0)
at hw/usb/hcd-ohci.c:1239
ed = {flags = 67080322, tail = 260614272, head = 260615936, next = 0}
next_ed = 0
cur = 260608080
active = 1
link_cnt = 1
#7 0x0000555555b50857 in ohci_frame_boundary (opaque=0x555556e814c0) at hw/usb/hcd-ohci.c:1304
n = 12
ohci = 0x555556e814c0
hcca = {intr = {260608080 <repeats 32 times>}, frame = 38252, pad = 0, done = 0}
#8 0x0000555555d12050 in timerlist_run_timers (timer_list=0x555556939600) at util/qemu-timer.c:536
ts = 0x555556ebc9b0
current_time = 224991592167
progress = false
cb = 0x555555b50778 <ohci_frame_boundary>
opaque = 0x555556e814c0
#9 0x0000555555d1209c in qemu_clock_run_timers (type=QEMU_CLOCK_VIRTUAL) at util/qemu-timer.c:547
No locals.
#10 0x0000555555d1244e in qemu_clock_run_all_timers () at util/qemu-timer.c:662
progress = false
type = QEMU_CLOCK_VIRTUAL
#11 0x0000555555d12bf9 in main_loop_wait (nonblocking=0) at util/main-loop.c:525
ret = 0
timeout = 499
timeout_ns = 977642
#12 0x0000555555969440 in main_loop () at vl.c:1899
No locals.
#13 0x0000555555971229 in main (argc=21, argv=0x7fffffffe358, envp=0x7fffffffe408) at vl.c:4717
i = 0
snapshot = 0
linux_boot = 1
initrd_filename = 0x0
kernel_filename = 0x5555568d78c0 "qemu-rpi-kernel/kernel-qemu-4.4.34-v4lm-jessie"
kernel_cmdline = 0x5555568d8c80 "root=/dev/sda2 panic=1 "
boot_order = 0x0
boot_once = 0x0
ds = 0x55555718f750
cyls = 0
heads = 0
secs = 0
translation = 0
opts = 0x0
machine_opts = 0x5555568d8b20
hda_opts = 0x0
icount_opts = 0x0
accel_opts = 0x0
olist = 0x55555629fc80 <qemu_machine_opts>
optind = 21
optarg = 0x7fffffffe780 "user,hostfwd=tcp::2222-:22"
loadvm = 0x0
machine_class = 0x5555568eff50
cpu_model = 0x7fffffffe6c2 "arm1176"
vga_model = 0x555555d8d8c4 "std"
qtest_chrdev = 0x0
qtest_log = 0x0
pid_file = 0x0
incoming = 0x0
defconfig = true
userconfig = true
nographic = false
display_type = DT_GTK
display_remote = 0
log_mask = 0x0
log_file = 0x0
trace_file = 0x0
maxram_size = 268435456
ram_slots = 0
vmstate_dump_file = 0x0
main_loop_err = 0x0
err = 0x0
list_data_dirs = false
bdo_queue = {sqh_first = 0x0, sqh_last = 0x7fffffffe140}
__func__ = "main"
(P.S. Tiedostoa tai hakemistoa ei ole = file or directory doesn't exist.)
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