Hi, I bought a Rev.C beagleboard [bb] (http://www.beagleboard.org) and compiled an open embedded kernel. This is not the vanilla 2.6 kernel, I know. There are some patches for the TI OMAP platform applied, but the wireless driver code should not be patched at all. There is a rt73 based WLAN stick (dlink dwl-g122, HW-rev. C1 ) plugged in on an usb hub which is connected to the EHCI port on the bb (This hardware is for a bb based mobile robot). Finally i got the WLAN with the rt73usb driver working with WPA and wpa_supplicant (ping ok :). I tried to transfer a "big" file (some MB's) with scp from my workstation to the bb's tmp directory. After some seconds (I did some dmesg and pings over the serial console in parallel) the kernel crashed. I also tried a 2.6.29 kernel (bitbake -p linux- omap-2.6.29.bb) -> This also crashed. Attached please see the output from the kernel for 2.6.28 and 2.6.29... I hope somebody can help or point out for any workaround. Please just ask if more informations should be provided. I'm a little bit hopeless because the legacy driver rt73.ko (CVS-Code from rt2x00.serialmonkey.com) also didn't work reliable. I cross compiled this driver for arm with the omap-cross compiler. I also got it to work with WPA-PSK. But the IP connection died after some time. Data transfer just stopped and ping didn't work anymore (iwlist wlan0 scanning still gave outputs %-) I don't know what to do. Please give any hints. Now the kernel output: 2.6.28: Unable to handle kernel paging request at virtual address b7400000 pgd = c0004000 [b7400000] *pgd=00000000 Internal error: Oops: 5 [#1] Modules linked in: CPU: 0 Not tainted (2.6.28-omap1 #4) PC is at skb_release_data+0xa0/0xc4 LR is at __kfree_skb+0x20/0xb8 pc : [<c0330f64>] lr : [<c0330c30>] psr: a0000113 sp : c051bd28 ip : c051bd48 fp : c051bd44 r10: 00000000 r9 : cf9f41c0 r8 : cfbd8032 r7 : 00000002 r6 : 00000000 r5 : cfbd2160 r4 : cfbd2160 r3 : 00000000 r2 : cfbd89c0 r1 : 000000b4 r0 : b7400000 Flags: NzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c5387d Table: 8edc4018 DAC: 00000017 Process swapper (pid: 0, stack limit = 0xc051a2e8) Stack: (0xc051bd28 to 0xc051c000) bd20: c0330ac0 cfbd2160 cf9f4884 00000000 c051bd5c c051bd48 bd40: c0330c30 c0330ed0 00000000 cfbd8036 c051bd6c c051bd60 c0330d10 c0330c1c bd60: c051bdfc c051bd70 c03dcfa0 c0330cd4 cfa75260 00000000 c051bd94 c051bd88 bd80: cfbd803c cf9f4884 cfbd2160 cfbd8038 cfbd803a cfbd8036 cfbd2160 00000000 bda0: cf9f41c0 00000000 00000000 00000000 c051be48 cf9c1180 00000000 00000002 bdc0: 00000000 0000000e 00000000 00000000 c051be24 00000018 cfbd8032 c051be48 bde0: 00000000 00000000 c051be48 cf9f41c0 c051be44 c051be00 c03dd7c4 c03dc9bc be00: c051be24 c051be10 c006e0f8 00000000 cf9c1180 cfbd2160 00003d22 cfbd2160 be20: cf9f41c0 c051be48 cf9f42a0 cf9f4294 00000000 0000000a c051be94 c051be48 be40: c03cd698 c03dd288 00000000 00000000 00000000 0000096c ffffffc6 00000000 be60: 0000003b 00000001 00000000 00000000 c051beb4 00000000 c055e560 c055e604 be80: 00000000 c055e5f0 c051beb4 c051be98 c00692ac c03cd618 00000100 00000014 bea0: c051a000 00000001 c051beec c051beb8 c00698c0 c0069240 cf9db660 00000000 bec0: c051beec 0000004d 00000000 c051e0e4 c003ae4c c05573c8 411fc083 0000001f bee0: c051bf04 c051bef0 c00699a4 c0069868 0000004d 0000004d c051bf1c c051bf08 bf00: c003906c c0069968 ffffffff d8200000 c051bf8c c051bf20 c0039a30 c003900c bf20: 32fa4e8b a0000013 009959d0 00000000 c0045054 c051a000 c051e0e4 c003ae4c bf40: c05573c8 411fc083 0000001f c051bf8c c051bf90 c051bf68 c003ae1c c0045150 bf60: 60000013 ffffffff c0045054 c051a000 c051e0e4 c003ae4c c05573c8 0000001f bf80: c051bfb4 c051bf90 c003ae1c c0045060 c0556f68 c056fa14 c0556f68 c002df00 bfa0: c051df78 8002c100 c051bfc4 c051bfb8 c03e97ec c003add8 c051bff4 c051bfc8 bfc0: c0008974 c03e97a4 c0008468 00000000 00000000 c002df00 00000000 10c5387d bfe0: c0557434 c002e304 00000000 c051bff8 80008034 c0008714 00000000 00000000 Backtrace: [<c0330ec4>] (skb_release_data+0x0/0xc4) from [<c0330c30>] (__kfree_skb+0x20/0xb8) r6:00000000 r5:cf9f4884 r4:cfbd2160 [<c0330c10>] (__kfree_skb+0x0/0xb8) from [<c0330d10>] (kfree_skb +0x48/0x4c) r4:cfbd8036 [<c0330cc8>] (kfree_skb+0x0/0x4c) from [<c03dcfa0>] (__ieee80211_rx_handle_packet+0x5f0/0x618) [<c03dc9b0>] (__ieee80211_rx_handle_packet+0x0/0x618) from [<c03dd7c4>] (__ieee80211_rx+0x548/0x5ac) [<c03dd27c>] (__ieee80211_rx+0x0/0x5ac) from [<c03cd698>] (ieee80211_tasklet_handler+0x8c/0x114) [<c03cd60c>] (ieee80211_tasklet_handler+0x0/0x114) from [<c00692ac>] (tasklet_action+0x78/0xb8) r8:c055e5f0 r7:00000000 r6:c055e604 r5:c055e560 r4:00000000 [<c0069234>] (tasklet_action+0x0/0xb8) from [<c00698c0>] (__do_softirq+0x64/0x100) r7:00000001 r6:c051a000 r5:00000014 r4:00000100 [<c006985c>] (__do_softirq+0x0/0x100) from [<c00699a4>] (irq_exit +0x48/0x88) [<c006995c>] (irq_exit+0x0/0x88) from [<c003906c>] (__exception_text_start+0x6c/0x88) r4:0000004d [<c0039000>] (__exception_text_start+0x0/0x88) from [<c0039a30>] (__irq_svc+0x30/0x80) Exception stack(0xc051bf20 to 0xc051bf68) bf20: 32fa4e8b a0000013 009959d0 00000000 c0045054 c051a000 c051e0e4 c003ae4c bf40: c05573c8 411fc083 0000001f c051bf8c c051bf90 c051bf68 c003ae1c c0045150 bf60: 60000013 ffffffff r5:d8200000 r4:ffffffff [<c0045054>] (omap3_pm_idle+0x0/0x130) from [<c003ae1c>] (cpu_idle +0x50/0x80) [<c003adcc>] (cpu_idle+0x0/0x80) from [<c03e97ec>] (rest_init +0x54/0x68) r8:8002c100 r7:c051df78 r6:c002df00 r5:c0556f68 r4:c056fa14 [<c03e9798>] (rest_init+0x0/0x68) from [<c0008974>] (start_kernel +0x26c/0x2d4) [<c0008708>] (start_kernel+0x0/0x2d4) from [<80008034>] (0x80008034) r6:c002e304 r5:c0557434 r4:10c5387d Code: e3500000 0a000006 e3a03000 e5823014 (e5904000) Kernel panic - not syncing: Fatal exception in interrupt 2.6.29: root@beagleboard:~# [ 130.690216] Unable to handle kernel paging request at virtual address 1a000000 [ 130.697540] pgd = c0004000 [ 130.700256] [1a000000] *pgd=00000000 [ 130.704010] Internal error: Oops: 5 [#1] [ 130.707977] Modules linked in: [ 130.711059] CPU: 0 Not tainted (2.6.29-omap1 #1) [ 130.716064] PC is at skb_release_data+0xa0/0xc4 [ 130.720611] LR is at __kfree_skb+0x20/0xb8 [ 130.724731] pc : [<c0358638>] lr : [<c0358484>] psr: 20000113 [ 130.724761] sp : c0555d38 ip : c0555d58 fp : c0555d54 [ 130.736297] r10: 00000000 r9 : cfb441a0 r8 : cfcaa02e [ 130.741546] r7 : 00000006 r6 : 00000000 r5 : cfd0ed60 r4 : cfd0ed60 [ 130.748107] r3 : 00000000 r2 : cfcaa9c0 r1 : 0000002d r0 : 1a000000 [ 130.754669] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel [ 130.762023] Control: 10c5387d Table: 8fd78019 DAC: 00000017 [ 130.767791] Process swapper (pid: 0, stack limit = 0xc05542e8) [ 130.773681] Stack: (0xc0555d38 to 0xc0556000) [ 130.778045] 5d20: c035732c cfd0ed60 [ 130.786437] 5d40: cfb44800 00000000 c0555d6c c0555d58 c0358484 c03585a4 5de57b23 cfcaa038 [ 130.794799] 5d60: c0555d7c c0555d70 c0358564 c0358470 c0555e0c c0555d80 c040a7d4 c0358528 [ 130.803192] 5d80: c0555dac c0555d90 c02c1d98 c02c3660 cfcaa038 cfb44800 cfd0ed60 cfcaa034 [ 130.811553] 5da0: cfcaa036 cfcaa032 c02d2768 cfd0ed60 00000000 cfb441a0 00000000 00000000 [ 130.819946] 5dc0: 00000000 c0555e50 cfb87180 00000006 00000000 00000004 00000000 00000000 [ 130.828308] 5de0: ffc01180 00000018 cfcaa02e 00000000 cfb442a4 00000000 c0555e50 cfb441a0 [ 130.836700] 5e00: c0555e4c c0555e10 c040b074 c040a1c8 00001da0 00000800 cfb87180 cfd0ed60 [ 130.845062] 5e20: 00000000 cfd0ed60 cfb441a0 c0555e50 cfb442a4 cfb44298 00000000 0000000a [ 130.853454] 5e40: c0555e9c c0555e50 c03fad3c c040aadc 00000000 00000000 00000000 0000096c [ 130.861816] 5e60: ffffffc2 00000000 0000002e 00000001 00000000 00000008 c02d71a4 00000000 [ 130.870208] 5e80: c05984a0 c059853c 00000000 c0598528 c0555ebc c0555ea0 c0062da0 c03facbc [ 130.878601] 5ea0: 00000100 00000014 c0554000 00000001 c0555ef4 c0555ec0 c00633c8 c0062d34 [ 130.886962] 5ec0: c0555eec c0555ed0 c0563930 0000004d 00000000 c0557ffc c003ce4c c05923a8 [ 130.895355] 5ee0: 411fc083 0000001f c0555f04 c0555ef8 c00634a8 c0063370 c0555f1c c0555f08 [ 130.903717] 5f00: c003b05c c0063470 ffffffff d8200000 c0555f8c c0555f20 c003ba30 c003b00c [ 130.912109] 5f20: 31d364dc a0000013 0061ca53 00000000 c004738c c0554000 c0557ffc c003ce4c [ 130.920471] 5f40: c05923a8 411fc083 0000001f c0555f8c c0555f90 c0555f68 c003ce1c c0047488 [ 130.928863] 5f60: 60000013 ffffffff c004738c c0554000 c0557ffc c003ce4c c05923a8 0000001f [ 130.937225] 5f80: c0555fb4 c0555f90 c003ce1c c0047398 c0591f64 c05cba54 c0591f64 c002eea4 [ 130.945617] 5fa0: c0557e90 8002cd8c c0555fc4 c0555fb8 c04104f0 c003cdd8 c0555ff4 c0555fc8 [ 130.953979] 5fc0: c0008950 c04104a4 c0008468 00000000 00000000 c002eea4 00000000 10c5387d [ 130.962371] 5fe0: c0592414 c002f2a8 00000000 c0555ff8 80008034 c0008714 00000000 00000000 [ 130.970733] Backtrace: [ 130.973205] [<c0358598>] (skb_release_data+0x0/0xc4) from [<c0358484>] (__kfree_skb+0x20/0xb8) [ 130.981903] r6:00000000 r5:cfb44800 r4:cfd0ed60 [ 130.986572] [<c0358464>] (__kfree_skb+0x0/0xb8) from [<c0358564>] (kfree_skb+0x48/0x4c) [ 130.994659] r4:cfcaa038 [ 130.997192] [<c035851c>] (kfree_skb+0x0/0x4c) from [<c040a7d4>] (__ieee80211_rx_handle_packet+0x618/0x640) [ 131.006958] [<c040a1bc>] (__ieee80211_rx_handle_packet +0x0/0x640) from [<c040b074>] (__ieee80211_rx+0x5a4/0x608) [ 131.017211] [<c040aad0>] (__ieee80211_rx+0x0/0x608) from [<c03fad3c>] (ieee80211_tasklet_handler+0x8c/0x120) [ 131.027160] [<c03facb0>] (ieee80211_tasklet_handler+0x0/0x120) from [<c0062da0>] (tasklet_action+0x78/0xb8) [ 131.036987] r8:c0598528 r7:00000000 r6:c059853c r5:c05984a0 r4:00000000 [ 131.043762] [<c0062d28>] (tasklet_action+0x0/0xb8) from [<c00633c8>] (__do_softirq+0x64/0x100) [ 131.052459] r7:00000001 r6:c0554000 r5:00000014 r4:00000100 [ 131.058197] [<c0063364>] (__do_softirq+0x0/0x100) from [<c00634a8>] (irq_exit+0x44/0x88) [ 131.066345] [<c0063464>] (irq_exit+0x0/0x88) from [<c003b05c>] (__exception_text_start+0x5c/0x70) [ 131.075317] [<c003b000>] (__exception_text_start+0x0/0x70) from [<c003ba30>] (__irq_svc+0x30/0x80) [ 131.084350] Exception stack(0xc0555f20 to 0xc0555f68) [ 131.089416] 5f20: 31d364dc a0000013 0061ca53 00000000 c004738c c0554000 c0557ffc c003ce4c [ 131.097808] 5f40: c05923a8 411fc083 0000001f c0555f8c c0555f90 c0555f68 c003ce1c c0047488 [ 131.106170] 5f60: 60000013 ffffffff [ 131.114562] r5:d8200000 r4:ffffffff [ 131.118164] [<c004738c>] (omap3_pm_idle+0x0/0x130) from [<c003ce1c>] (cpu_idle+0x50/0x80) [ 131.126434] [<c003cdcc>] (cpu_idle+0x0/0x80) from [<c04104f0>] (rest_init+0x58/0x6c) [ 131.134277] r8:8002cd8c r7:c0557e90 r6:c002eea4 r5:c0591f64 r4:c05cba54 [ 131.141052] [<c0410498>] (rest_init+0x0/0x6c) from [<c0008950>] (start_kernel+0x248/0x2a4) [ 131.149383] [<c0008708>] (start_kernel+0x0/0x2a4) from [<80008034>] (0x80008034) [ 131.156860] r6:c002f2a8 r5:c0592414 r4:10c5387d [ 131.161529] Code: e3500000 0a000006 e3a03000 e5823014 (e5904000) [ 131.168457] Kernel panic - not syncing: Fatal exception in interrupt thanks and greets, Kai ______________________________________________________ GRATIS für alle WEB.DE-Nutzer: Die maxdome Movie-FLAT! 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