# Digi CM 16 - Boot Failure Kernel Panic: Oops: kernel access of bad area, sig: 11

**URL:** <https://forums.digi.com/t/digi-cm-16-boot-failure-kernel-panic-oops-kernel-access-of-bad-area-sig-11/14327>\
**Category:** Digi CM & Passport\
**Tags:** kernel, kernel-panic, failure, boot, 16\
**Created:** [February 9, 2015, 11:46pm UTC](https://forums.digi.com/t/digi-cm-16-boot-failure-kernel-panic-oops-kernel-access-of-bad-area-sig-11/14327 "2015-02-09T23:46:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ArrowLabs](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@ArrowLabs](https://forums.digi.com/u/ArrowLabs)\
**Post date:** [February 9, 2015, 11:46pm UTC](https://forums.digi.com/t/digi-cm-16-boot-failure-kernel-panic-oops-kernel-access-of-bad-area-sig-11/14327/1 "2015-02-09T23:46:16Z")

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Doing a new project and resurecting a Digi CM16. No PCMCIA Device installed.

Connected via Serial cable. Boot giving kernel panic. Need to see if anyone can point me to the manual to repair / debug.

Boot Output:

* * *

Bootloader 1.0.0 (Mar 4 2003 - 18:02:52)

CPU : XPC855xxZPnnD4 (50 MHz)  
DRAM : 64 MB  
FLASH : 8 MB  
PC CARD : No card  
EEPROM : A Type exist  
Ethernet : AUTO-NEGOTIATION  
Autoboot Start: 0  
[Kernel Image]  
Image Address : f0020000  
Data Size : 649727 Bytes  
Verifying Checksum … OK  
[Ram Disk Image]  
Image Address : f06d0000  
Data Size : 51916 Bytes  
Verifying Checksum … OK  
Linux version 2.4.2\_hhl20 (root@localhost.localdomain) (gcc version 2.95.3 2001315 (release/MontaVista)) #249 Wed Feb 26 18:57:29 KST 2003  
On node 0 totalpages: 16384  
zone(0): 16384 pages.  
zone(1): 0 pages.  
zone(2): 0 pages.  
Kernel command line: root=/dev/mtdblock2  
RTC Time(mm/dd/yy-hh:mm:ss) : 2/9/20015-15:3:4  
Decrementer Frequency = 187500000/60  
Calibrating delay loop… 49.86 BogoMIPS  
Memory: 62496k available (1204k kernel code, 552k data, 52k init, 0k highmem)  
Dentry-cache hash table entries: 8192 (order: 4, 65536 bytes)  
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)  
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)  
Inode-cache hash table entries: 4096 (order: 3, 32768 bytes)  
POSIX conformance testing by UNIFIX  
Linux NET4.0 for Linux 2.4  
Based upon Swansea University Computer Society NET3.039  
Starting kswapd v1.8  
CPM UART driver version 0.03  
ttyS0 on SMC1 at 0x0280, BRG1  
ttyS1 on SCC1 at 0x0000, BRG2  
CPM interrupt c00ceee8 replacing c00ceee8  
pty: 256 Unix98 ptys configured  
Oops: kernel access of bad area, sig: 11  
NIP: C00CF19C XER: 8000DF7F LR: C00CEA6C SP: C3F95C10 REGS: c3f95b60 TRAP: 0300  
MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11  
DAR: 0000011C, DSISR: 00000009  
TASK = c3f94000[1] ‘swapper’ Last syscall: 120  
last math 00000000 last altivec 00000000  
GPR00: 00000000 C3F95C10 C3F94000 C3FFD160 C3F95CE0 C3F95CE0 00000001 00010000  
GPR08: C01760B4 00000000 FF0009C0 C0190000 0000000D E0A00000 03FF0E00 007FFF13  
GPR16: 00000000 00000001 007FFF00 FFFFFFFF 00001032 03F95CD0 00000002 C016A1A0  
GPR24: FF000A00 C3F95CE0 C3FFD160 C0170000 00000005 C017CA80 00000000 0000000E  
Call backtrace:  
00000001 C00CEA6C C0003904 C0003A30 C0002810 C000FC9C C0183920  
C01835F8 C0183668 C0182394 C0181C58 C017D81C C017D8BC C00023A8  
C0004E80  
Kernel panic: Aiee, killing interrupt handler

In interrupt handler - not syncing  
Rebooting in 180 seconds…

* * *

Thanks

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<div class="post-metadata">

**Author:** ![userid0](https://avatars.discourse-cdn.com/v4/letter/u/f6c823/32.png) [@userid0](https://forums.digi.com/u/userid0)\
**Post date:** [February 10, 2015, 10:16am UTC](https://forums.digi.com/t/digi-cm-16-boot-failure-kernel-panic-oops-kernel-access-of-bad-area-sig-11/14327/2 "2015-02-10T10:16:20Z")

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Have you tried a factory reset?

[http://www.digi.com/support/kbase/kbaseresultdetl?id=3491](http://www.digi.com/support/kbase/kbaseresultdetl?id=3491)

If this does not work, you will want to contact Digi Tech. Support to pursue repair.

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<div class="post-metadata">

**Author:** ![ArrowLabs](https://avatars.discourse-cdn.com/v4/letter/a/b2d939/32.png) [@ArrowLabs](https://forums.digi.com/u/ArrowLabs)\
**Post date:** [February 24, 2015, 8:50am UTC](https://forums.digi.com/t/digi-cm-16-boot-failure-kernel-panic-oops-kernel-access-of-bad-area-sig-11/14327/3 "2015-02-24T08:50:21Z")

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This was correct. It was being picky on reset… Had to old down reset button a few different times and ways to finally get it to not just reboot, but to wipe itself back. Thanks for the help