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Explorer
Explorer
13,398 Views
Registered: ‎09-15-2011

Unable to handle kernel paging request at virtual address fffffffc

zynq> 
zynq> insmod /root/wlan.ko 
[   97.764448] wlan: loading driver v4.5.10.016
[   97.768749] HIFInit sdio_register_driver ENTER
[   97.773602] hifDeviceInserted ENTER
[   97.777304] hifDeviceInserted: Dumping clocks (50000000,50000000)
[   97.783372] HIFDumpCCCR 0(43) 1(3) 2(0) 3(0) 4(0) 5(0) 6(0) 7(6) 8(17) 9(0) A(10) B(0) C(0) D(0) E(0) F(0) 10(0) 11(0) 12(1) 13(3) 14(7) 15(37) 16(1) 
[   97.824806] HIFInit sdio_register_driver successful
[   97.829605] ath_hif_sdio: HIF (Atheros/multi-bss)
[   97.834527] [330] struct file *file;
[   97.838025] [334] !fw_path[i][0];
[   97.841322] [330] struct file *file;
[   97.844958] [338]path=/lib/firmware/updates/3.14.0-xilinx/wlan/qcom_cfg.ini
[   97.852021] Unable to handle kernel paging request at virtual address fffffffc
[   97.859256] pgd = c0004000
[   97.861886] [fffffffc] *pgd=07fee821, *pte=00000000, *ppte=00000000
[   97.868141] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[   97.873516] Modules linked in: wlan(O+) cfg80211(O) compat(O)
[   97.879254] CPU: 0 PID: 623 Comm: AR6K startup Tainted: G           O 3.14.0-xilinx #6
[   97.887146] task: c4a93600 ti: c1cbe000 task.ti: c1cbe000
[   97.892543] PC is at memcpy+0x114/0x330
[   97.896359] LR is at _request_firmware+0x398/0xac0
[   97.901123] pc : [<c0204374>]    lr : [<c02ad508>]    psr: 60000013
[   97.901123] sp : c1cbfcdc  ip : 00000002  fp : c7473980
[   97.912577] r10: c21f2000  r9 : fffffffe  r8 : bf22863a
[   97.917786] r7 : 00000000  r6 : c744e808  r5 : c1d4ac40  r4 : fffffffe
[   97.924296] r3 : fffffdfa  r2 : 0000010c  r1 : fffffffc  r0 : c1cbfce8
[   97.930807] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[   97.938097] Control: 18c5387d  Table: 07b1804a  DAC: 00000015
[   97.943826] Process AR6K startup (pid: 623, stack limit = 0xc1cbe240)
[   97.950249] Stack: (0xc1cbfcdc to 0xc1cc0000)
[   97.954590] fcc0:                                                                c1cbfce8
[   97.962754] fce0: fffffffe c02ad508 c74739e0 c1cbe000 00000000 60000093 000040d0 c078f2c0
[   97.970913] fd00: 002240d0 c078e6c0 00000001 c1cbe000 00000000 60000093 000040d0 c078f2c0
[   97.979072] fd20: 002240d0 c078e6c0 00000001 c0061a30 c4a93600 c078e6e4 c4a93600 00000006
[   97.987231] fd40: 00000002 c4a93600 00000001 c00a5cf4 000040d0 c7f21e80 002240d0 c078e6c0
[   97.995390] fd60: 00000001 c0062358 c078e6c0 40000013 00000000 c00a5dcc 00000041 00000001
[   98.003549] fd80: c4a93600 00000002 fffffffe 00300000 c078f2c4 00000000 00000002 00000000
[   98.011708] fda0: c4a93600 c4a93a68 00000002 00000000 00000000 00000468 00000006 c006029c
[   98.019867] fdc0: c06491a7 002040d0 00000001 00000001 00000006 00000000 00000000 c078e6c0
[   98.028026] fde0: 00000000 c00a5fd4 00000000 00000041 c078e6c0 00000000 00000001 c1cbe000
[   98.036186] fe00: 00001770 00000005 00000004 60000093 00000000 c1cbfe7c c1cf4000 c1cbfe7c
[   98.044346] fe20: c744e808 bf22863a c48ee800 00000000 c744e808 c1d4acc0 00000001 c02adce4
[   98.052505] fe40: c1ccad40 c1cbfe7c 00000000 bf06e778 c4a93600 c4802500 c4a93600 00000006
[   98.060663] fe60: 00000002 c4a93600 00000001 c00d0c08 60000013 00000000 c744e808 00000000
[   98.068823] fe80: 00000001 c0062358 c1cf4000 c1cca200 c1ccad40 bf2da264 c48ee800 00000000
[   98.076983] fea0: c744e808 c1d4acc0 00000001 bf086ff8 c7473900 c0127b24 c7473880 c7473900
[   98.085142] fec0: c7473900 bf2f4508 bf355720 c744e800 00000000 c0127bb8 bf2ad7f6 c7473880
[   98.093300] fee0: bf1eac58 c48ee800 c1ca6000 bf355720 c744e800 00000000 00000000 00000000
[   98.101460] ff00: 00000000 bf1ee0e0 00000000 c744e808 bf1eded0 c1ca6000 00000000 c1ca6000
[   98.109619] ff20: bf1ee9a0 bf1ee9d0 c181bf80 c0042d14 00000002 00000000 00000001 c1ca6000
[   98.117778] ff40: 00000000 00000000 dead4ead ffffffff ffffffff c079b264 00000000 00000000
[   98.125937] ff60: c064001b c1cbff64 c1cbff64 00000000 00000000 dead4ead ffffffff ffffffff
[   98.134096] ff80: c079b264 00000000 00000000 c064001b c1cbff90 c1cbff90 c1cbffac c181bf80
[   98.142255] ffa0: c0042c4c 00000000 00000000 c000ea28 00000000 00000000 00000000 00000000
[   98.150413] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   98.158573] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 5f646574 73746b50
[   98.166736] Code: e211c003 0affffc4 e3c11003 e35c0002 (e491e004) 
[   98.172860] ---[ end trace 101b8bccc6ed33a3 ]---
[  107.832166] wlan: [620:F :HDD] hdd_driver_init: timed-out waiting for hif_register_driver
[  107.840278] wlan: [620:F :HDD] hdd_driver_init: WLAN Driver Initialization failed
[  107.847930] AR6000: Unregistering with the bus driver
[  107.854657] AR6000: Unregistered!
[  107.857725] wlan: driver load failure
insmod: can't insert '/root/wlan.ko': No such device
zynq> 

what is the meaning

Unable to handle kernel paging request at virtual address fffffffc

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3 Replies
Moderator
Moderator
13,376 Views
Registered: ‎12-04-2016

Re: Unable to handle kernel paging request at virtual address fffffffc

Hi

 

Debugging this kernel panic issues are little difficult, the problem you are seeing with memory get corrupted somewhere.

 

I can help you with a link, which clearly explains how to debug the issue:

Unable to handle kernel paging request at virtual address

https://sanjeevsharmaengg.wordpress.com/tag/debug-kernel-panics/

 

 There is a System.map file in linux, with that you can trace what would be happening exacty.

 

 

Best Regards

Shabbir

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Observer shustik
Observer
9,017 Views
Registered: ‎07-14-2017

Re: Unable to handle kernel paging request at virtual address fffffffc

Authors had deleted these page. I have the same problem (but with the other address). What does it mean and how can I fix it?

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Observer eazrael
Observer
9,010 Views
Registered: ‎05-19-2017

Re: Unable to handle kernel paging request at virtual address fffffffc

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