OHCI / EHCI randomly crashes

[tuxuser]

There are reports where the crash appears even if no USB device is plugged..

[tuxuser]

stackdump, reported by "BioHazard". He got it when attaching a fat32 USB Stick right from boot. When he attached FAT32 AFTER "usb_init()" the device didn't get enumerated - so it didn't crash.

libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:340
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:604
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:956
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:1340
xell/source/lv2/mount.c:268
xell/source/lv2/crypt/hmac_sha1.c:82
xell/source/lv2/mount.c:183
libxenon/libxenon/ports/xenon/../../startup/xenon/crt1.c:27
argv.c:0

[tuxuser]

And here's the actual problem I was talking about - related to tinyehci / usb init!

• usb init
  • Initialising USB EHCI...
    Initialising EHCI bus 0 at 0xea003000
    Initialising EHCI bus 1 at 0xea005000
    EHCI bus 1 port 4: low speed, releasing to OHCI
  • Initialising USB OHCI...
    USB bus 0 device 1: vendor 0000 product 0000 class 09: USB Hub
    USB bus 1 device 1: vendor 0000 product 0000 class 09: USB Hub
    USB: New device connected to bus 1 hub 1 port 4
    USB bus 1 device 2: vendor 045E product 02A9 class FF: Xbox 360 Controller
  • Xenos FB with 148x41 (1280x720) at 0x9e000000 initialized.

Segmentation fault!

pir=0000000000000000 dar=000000000000003c
sr0=000000008000fc4c sr1=1000000002003030 lr=000000008000fb54

00=0000000000000040 08=0000000000000000 16=0000000000000000 24=0000000000000000
01=000000008ff7fdc0 09=0000000000000000 17=0000000000000000 25=0000000000000000
02=800000001c00a408 10=000000000000001f 18=0000000000000000 26=fffffffffffffffe
03=0000000000000060 11=ffffffffffffffff 19=0000000000000000 27=00000000803e30d0
04=ffffffffffffffc0 12=0000000024024042 20=0000000053425355 28=00000000803e3120
05=0000000080176400 13=0000000002000000 21=0000000000000000 29=00000000803e30c8
06=0000000000000001 14=0000000000000000 22=0000000000000000 30=000000008ff7fdf8
07=000000000000001f 15=00000000000000000 23=0000000000000000 31=0000000080176300

STACK DUMP:
0x8000fc4c --> 0x8000fb54 --> 0x800113d4 --> 0x80010c9c -->
0x80011968 --> 0x80011b28 --> 0x8000f39c --> 0x800023f8 -->
0x8000acf8

On uart: 'x'=Xell, 'h'=Halt, 'r'=Reboot

// Stack Dump

$ xenon-addr2line -e stage2.elf 0x8000fc4c 0x8000fb54 0x800113d4 0x80010c9c 0x80011968 0x80011b28 0x8000f39c 0x800023f8 0x8000acf8

libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:365
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:618
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:332
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:465
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:1115
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:1229
libxenon/libxenon/ports/xenon/../../drivers/usb/usbmain.c:310
xell/source/lv2/main.c:254
kbootconf.c:0

[tuxuser]

Another crashdump (XTAF HDD & FAT32 USB stick plugged)

Crash happened approximately after printing FUSES

libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:365
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:625
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:972
libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:1356
xell/source/lv2/mount.c:416
xell/source/lv2/mount.c:514
xell/source/lv2/main.c:133
libxenon/libxenon/ports/xenon/../../startup/xenon/crt1.c:27
argv.c:0

[tuxuser]

Another one:

xenon-addr2line -e stage2.elf 0x8000fc4c 0x8000fb54 0x80011b28 0x8000f39c 0x80002358 0x8000acf8
/mnt/internal/libxenon/Free60Project/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:365
/mnt/internal/libxenon/Free60Project/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:618
/mnt/internal/libxenon/Free60Project/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:1229
/mnt/internal/libxenon/Free60Project/libxenon/libxenon/ports/xenon/../../drivers/usb/usbmain.c:310
/mnt/internal/libxenon/Free60Project/xell/source/lv2/main.c:223
kbootconf.c:0

[Swizzy]

Stack dump: 8000e4b0 8000e3b8 8000f9c0 80010178 800103ec 800027cc 80001eec 800077f4
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:365
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/ehci.c:618
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:786
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:1101
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/tinyehci/usbstorage.c:1245
/libxenon/xell/source/lv2/main.c:159
/opt/libxenon/libxenon/ports/xenon/../../startup/xenon/crt1.c:27
argv.c:0

[Swizzy]

Another one:

Stack dump: 800206b4 8002065c 8000c74c 8000d640 8000cfb0 8000db74 800027cc 80001eec 800077f4
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/ohci.c:957
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/ohci.c:1076
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/usbd.c:1026
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/usbhub.c:630
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/usbhub.c:160
/opt/libxenon/libxenon/ports/xenon/../../drivers/usb/usbmain.c:303
/libxenon/xell/source/lv2/main.c:159
/opt/libxenon/libxenon/ports/xenon/../../startup/xenon/crt1.c:27
argv.c:0