On 03/30/2010 03:28 PM, John W. Linville wrote: > On Tue, Mar 30, 2010 at 10:23:51AM -0500, Larry Finger wrote: > >> If possible, I would like you to do one more test on that troublesome netbook. >> Please build a kernel with CONFIG_MMIOTRACE=y and build the Broadcom wl driver >> for it. Starting with wl unloaded, issue the following commands (as root): >> >> echo 10000 > /sys/kernel/debug/tracing/buffer_size_kb >> echo mmiotrace > /sys/kernel/debug/tracing/current_tracer >> cat /sys/kernel/debug/tracing/trace_pipe > wl_dump.txt & >> modprobe -v wl >> >> After the wireless network device gets created, etc., then >> >> echo nop > /sys/kernel/debug/tracing/current_tracer >> sleep 1 >> killproc cat >> >> and send me the file wl_dump.txt. With it, I will be able to see if the Broadcom >> driver is actually finding an SPROM that b43 is missing. > > Done: > > http://www.kernel.org/pub/linux/kernel/people/linville/ssb-debug/wl_dump.txt.gz Thanks. After using the mmio reformatting tool on your data, I found the following: read16 #1 block at 0xfeafc800 of 220 (0xdc) elements: 0xfeafc800: 3801 0000 1507 103c 0078 6dbe 0000 2bc4 2a64 2964 2c64 3ce7 0xfeafc818: 46ff 477f 0c00 7840 00a0 ffff 0000 ffff ffff ffff ffff ffff 0xfeafc830: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc848: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc860: 4315 8000 0002 0000 1800 1800 0000 0000 ffff ffff ffff ffff 0xfeafc878: ffff ffff ffff ffff 5372 1306 0a01 0006 0000 0000 0025 5681 0xfeafc890: 783e 5553 0000 03ff ffff ffff 0003 ff02 ffff ff11 000f ffff 0xfeafc8a8: 006c ffff fffa ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc8c0: 3e44 17ec fa34 fe73 ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc8d8: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc8f0: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc908: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc920: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc938: ffff ffff ffff ffff ffff 0008 ffff ffff ffff ffff ffff ffff 0xfeafc950: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc968: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc980: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc998: ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff ffff 0xfeafc9b0: ffff ffff ffff ed08 That is the reading of a valid, rev. 8 SPROM. Your device does indeed have one. Why we avoided the lockup by skipping the readout remains a question. Now to build wl here and compare the differences. Thanks, Larry -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
