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Message-ID: <4AE36884.6060806@lwfinger.net>
Date: Sat, 24 Oct 2009 15:50:12 -0500
From: Larry Finger <Larry.Finger@lwfinger.net>
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To: Tomasz Chmielewski <mangoo@wpkg.org>
CC: linux-wireless@vger.kernel.org
Subject: Re: "Reserved instruction in kernel code" on ath9k insertion
References: <4AE35A9E.8000507@wpkg.org>
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On 10/24/2009 02:50 PM, Tomasz Chmielewski wrote:
> When I do "modprobe ath9k" on ASUS-WL-500gP (MIPS) with _ath5k_ card
> (so, no ath9k hardware), it says "Reserved instruction in kernel code" -
> is it expected?
> 
> The kernel is 2.6.31.1.
> 
> 
> # modprobe ath9k
> [  165.440000] Reserved instruction in kernel code[#1]:
> [  165.440000] Cpu 0
> [  165.440000] $ 0   : 00000000 1000dc00 00000000 00000000
> [  165.440000] $ 4   : c1135b20 00000001 c044e69c ffffffff
> [  165.440000] $ 8   : 0000000a 8101f6d8 ffffffe0 0000002b
> [  165.440000] $12   : 00000e44 00000006 80333ae8 5f657361
> [  165.440000] $16   : 00000001 c1135ca4 80370000 81418000
> [  165.440000] $20   : 00000000 00000000 00000000 004fe008
> [  165.440000] $24   : 00000010 c1115118
> [  165.440000] $28   : 81da6000 81da7ea8 7febead8 81418014
> [  165.440000] Hi    : 00000000
> [  165.440000] Lo    : 00000000
> [  165.440000] epc   : c044e694 0xc044e694
> [  165.440000]     Not tainted
> [  165.440000] ra    : 81418014 ath9k_init+0x14/0xa4 [ath9k]
> [  165.440000] Status: 1000dc03    KERNEL EXL IE
> [  165.440000] Cause : 80800028
> [  165.440000] PrId  : 00029006 (Broadcom BCM3302)
> [  165.440000] Modules linked in: ath9k(+) aes_generic tun sch_sfq
> cls_fw sch_htb ipt_MASQUERADE iptable_nat nf_nat xt_MARK iptable_mangle
> ipt_ULOG xt_recent nf_conntrack_ipv4 nf_defrag_ipv4 xt_state
> nf_conntrack xt_tcpudp iptable_filter ip_tables x_tables arc4 ecb ath5k
> mac80211 ath ohci_hcd cfg80211 uhci_hcd
> [  165.440000] Process modprobe (pid: 1285, threadinfo=81da6000,
> task=81dc0048, tls=2aad96f0)
> [  165.440000] Stack : 00000000 00000000 c1049988 000002a0 00000001
> 8000cda4 80330000 c1135ca4
> [  165.440000]         0041ee08 2ac50000 005021a8 00000000 8004d59c
> 0029e597 0041ee08 2ac50000
> [  165.440000]         00000001 c1135ca4 0041ee08 2ac50000 005021a8
> 8005fc84 0029f000 00000002
> [  165.440000]         00408228 00400de0 004f1400 2aad8f08 00408228
> 00400de0 004f1400 2aad8f08
> [  165.440000]         800035f0 800035f0 005021a8 004ff648 004fe008
> 00000000 00401090 00000000
> [  165.440000]         ...
> [  165.440000] Call Trace:
> [  165.440000] [<8000cda4>] do_one_initcall+0x6c/0x204
> [  165.440000] [<8004d59c>] blocking_notifier_call_chain+0x14/0x20
> [  165.440000] [<8005fc84>] sys_init_module+0xe8/0x214
> [  165.440000] [<800035f0>] stack_done+0x20/0x3c
> [  165.440000] [<800035f0>] stack_done+0x20/0x3c
> [  165.440000]
> [  165.440000]
> [  165.440000] Code: 00000000  00000000  00000000 <00003009> 005196a8 
> 005196a8  00000002  00000000  005166b0
> [  165.440000] Disabling lock debugging due to kernel taint
> Segmentation fault
> #

Is that the start of the error dump? A BUG() statement places an
illegal instruction in the code. Is that the case here?