Date: Sun, 18 May 2014 15:57:07 +0200 From: =?ISO-8859-1?Q?Olivier_Cochard=2DLabb=E9?= <olivier@cochard.me> To: =?ISO-8859-2?Q?Edward_Tomasz_Napiera=B3a?= <trasz@freebsd.org> Cc: "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: Workaround for "fatal firmware error" iwn(4) problem. Message-ID: <CA%2Bq%2BTcpHvunOJXucN2j7=PDLrhND1JK7B-QWC-QDTEEZHnJ4PQ@mail.gmail.com> In-Reply-To: <8FB7D6BF-005A-41A1-9DCE-C8B09EA338EE@FreeBSD.org> References: <8FB7D6BF-005A-41A1-9DCE-C8B09EA338EE@FreeBSD.org>
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On Fri, May 16, 2014 at 8:06 PM, Edward Tomasz Napierała <trasz@freebsd.org>wrote: > I've started using FreeBSD laptop and iwn(4) failing at random moments > like this... > > I had the same problem too with iwn(4). > > ... has been driving me crazy, so I wrote a workaround. The patch > can be found here: > > http://people.freebsd.org/~trasz/iwn.diff > > I've tested you patch on a r266396, but it generate a panic: wlan0: Ethernet address: 00:1d:e0:29:19:65 Starting wpa_supplicant. Starting dhclient. wlan0: no link .............. giving up /etc/rc.d/dhclient: WARNING: failed to start dhclient iwn0: iwn_intr: fatal firmware error firmware error log: error type = "NMI_INTERRUPT_WDG" (0x00000004) program counter = 0x0000046C source line = 0x000000D0 error data = 0x0000000207030000 branch link = 0x00008370000004C2 interrupt link = 0x000006DE000018B8 time = 11427825 driver status: tx ring 0: qid=0 cur=0 queued=0 tx ring 1: qid=1 cur=0 queued=0 tx ring 2: qid=2 cur=0 queued=0 tx ring 3: qid=3 cur=1 queued=0 tx ring 4: qid=4 cur=68 queued=0 tx ring 5: qid=5 cur=0 queued=0 tx ring 6: qid=6 cur=0 queued=0 tx ring 7: qid=7 cur=0 queued=0 tx ring 8: qid=8 cur=0 queued=0 tx ring 9: qid=9 cur=0 queued=0 tx ring 10: qid=10 cur=0 queued=0 tx ring 11: qid=11 cur=0 queued=0 tx ring 12: qid=12 cur=0 queued=0 tx ring 13: qid=13 cur=0 queued=0 tx ring 14: qid=14 cur=0 queued=0 tx ring 15: qid=15 cur=0 queued=0 rx ring: cur=22 iwn0: iwn_intr: reinit; 0xfffffe00008090b0 iwn0: iwn_reinit_thread: controller panicked; resetting... Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0xffff fault code = supervisor read data, page not present instruction pointer = 0x20:0xffffffff805a4b10 stack pointer = 0x28:0xfffffe0120353b30 frame pointer = 0x28:0xfffffe0120353b60 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 0 (iwn_reinit) About the instruction pointer code: addr2line -e /boot/kernel/kernel.symbols 0xffffffff805a4b10 /usr/src/sys/dev/iwn/if_iwn.c:6792 Regards, Olivier
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