Erase Block Summary on JFFS2 "totlen for ref at" crashing

[Rice, Fredric]

Greetings, List!

This is a "totlen for ref at" miscalculated crash that I have been struggling with for a month now, trying numerous things in an attempt to get Erase Block Summary working on JFFS2 for my NOR. I see doing Google searches that other people have gotten this crash over the years, and I scanned the MTD archives but did not see anyone reporting this crash behavior yet.

What's curious is that my JFFS2 image and Kernel both of which have Erase Block Summary enabled on them will run just fine on some of my target devices, but not on others -- and I don't see any reason for that.

But what's even more curious is that after I upload my JFFS2 file image to my target the first time, Linux comes up and runs just fine -- the first time. After I reboot, I get the crash (you can see that behavior in the console spew below; works fine, reboot, it crashes.)

Can anyone tell me what the most likely cause for this is? I used:

mkfs.jffs2 -q -U -p -n --eraseblock=0x20000 --pagesize=0x20000 \
  --big_endian --pad=4 --devtable=device_tabel.txt -e128KiB \
  -o chmm.jffs2 -d ./reference_filesystem

And that successfully produces a Linux image with the correct EBS and then I create a sumtool output

sumtool -b -i chmm.jffs2 chmm-sum.jffs2 -e128KiB

Which creates an imagine that has the blocks marks for EBS

So I expect that I'm building the kernel and the image correctly, and that Erase Block Summary is built correctly, but I get a crash when  it is run the second time. :(



## Booting kernel from Legacy Image at ffc40000 ...
   Image Name:   Linux-2.6.24-ts-powerpc
   Created:      2016-01-11  20:16:45 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
[    0.000000] Linux version 2.6.24-ts-powerpc (root at railviu-desktop) (gcc version 4.4.3 (GCC) ) #13 PREEMPT Mon Jan 11 12:16:40 PST 2016
[ 1632.550296] JFFS2 version 2.2. (NAND) (SUMMARY)  (c) 2001-2006 Red Hat, Inc.
[ 1632.909874] Creating 5 MTD partitions on "f8000000.flash":
[ 1632.915344] 0x00000000-0x00040000 : "protected"
[ 1632.920642] 0x00040000-0x07c40000 : "filesystem"
[ 1632.925982] 0x07c40000-0x07ec0000 : "kernel"
[ 1632.931034] 0x07ec0000-0x07f00000 : "device-tree"
[ 1632.936453] 0x07f00000-0x08000000 : "u-boot"
[ 1632.941599] MPC5121 MTD nand Driver 0.2
[ 1632.946068] Initializing USB Mass Storage driver...

BusyBox v1.15.3 (2010-10-04 17:56:44 PDT) built-in shell (ash)
Enter 'help' for a list of built-in commands.

# echo Everybody is happy here, Linux file system is intact
# reboot


U-Boot 9VA44A01.C3 (Feb 17 2012 - 04:51:52) MPC512X
CPU:   MPC5121e rev. 2.0, Core e300c4 at 399.999 MHz, CSB at 199 MHz
## Booting kernel from Legacy Image at ffc40000 ...
   Image Name:   Linux-2.6.24-ts-powerpc
   Created:      2016-01-11  20:16:45 UTC
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)

[    0.821418] Creating 5 MTD partitions on "f8000000.flash":
[    0.826886] 0x00000000-0x00040000 : "protected"
[    0.832184] 0x00040000-0x07c40000 : "filesystem"
[    0.837515] 0x07c40000-0x07ec0000 : "kernel"
[    0.842496] 0x07ec0000-0x07f00000 : "device-tree"
[    0.847929] 0x07f00000-0x08000000 : "u-boot"

[    3.403855] Totlen for ref at cfb45500 (0x03940000-0x0394000c) miscalculated as 0x0 instead of c
[    3.412596] next cfb4550c (0x03940000-0x0394000c)
[    3.417282] jeb->wasted_size 0, dirty_size 0, used_size c, free_size 1fff4
[    3.424183] ------------[ cut here ]------------
[    3.428749] Badness at c012a858 [verbose debug info unavailable]
[    3.434748] NIP: c012a858 LR: c012a858 CTR: c01a76f8
[    3.439707] REGS: cf81f9b0 TRAP: 0700   Not tainted  (2.6.24-ts-powerpc)
[    3.446397] MSR: 00029032 <EE,ME,IR,DR>  CR: 22044082  XER: 20000000
[    3.452746] TASK = cf815000[1] 'swapper' THREAD: cf81e000
[    3.457960] GPR00: c012a858 cf81fa60 cf815000 00000051 00001cab ffffffff 00000006 c0429798
[    3.466306] GPR08: 00001c5c 00000000 00000000 d10563d0 82044082 100ae370 c034686c 00020000
[    3.474652] GPR16: 00000000 00000000 cfa7e4b4 0000e002 0000378c 0000e001 0000378c c04314f4
[    3.482998] GPR24: cfa7b340 00000000 cf9e5d08 0000e002 00000000 cf9e5d08 cfb4550c cfb45500
[    3.491518] Call Trace:
[    3.493954] [cf81fa60] [c012a858]  (unreliable)
[    3.498474] [cf81fa80] [c012aabc] [    3.501865] [cf81faa0] [c013aa54] [    3.505255] [cf81fac0] [c013ae0c]
[    3.508646] [cf81fb30] [c0131668] [    3.512037] [cf81fbc0] [c0134610] [    3.515428] [cf81fc00] [c01362d4]
[    3.518818] [cf81fc20] [c01378ac] [    3.522209] [cf81fc40] [c01e56ac] [    3.525600] [cf81fc60] [c01e5970]
[    3.528991] [cf81fcf0] [c01375f8] [    3.532381] [cf81fd00] [c0084e68] [    3.535771] [cf81fd20] [c0084f30]
[    3.539162] [cf81fd40] [c00a38d4] [    3.542553] [cf81feb0] [c00a3edc] [    3.545944] [cf81fee0] [c0387cb8]
[    3.549334] [cf81fef0] [c0387fa4] [    3.552725] [cf81ff40] [c03883c8] [    3.556116] [cf81ff50] [c03873f4]
[    3.559506] [cf81fff0] [c001106c]
[    3.562896] Instruction dump:
[    3.565853] 5400003a 3c60c034 386351ec 7cc04a14 481ea955 80fd0020 3c60c034 809d001c
[    3.573590] 38635230 80bd0018 80dd0014 481ea939 <0fe00000> 80df0008 4bfffeb8 2f860000
[    3.581525] JFFS2 error: (1) jffs2_link_node_ref: Adding new ref cfb4550c at (0x03940000-0x03940350) not immediately after previous (0x03940000-0x0394000c)
[    3.595434] ------------[ cut here ]------------
[    3.600020] Kernel BUG at c012aafc [verbose debug info unavailable]
[    3.606286] Oops: Exception in kernel mode, sig: 5 [#1]
[    3.611495] PREEMPT MPC5121 ADS
[    3.614625] Modules linked in:
[    3.617671] NIP: c012aafc LR: c012aafc CTR: c01a76f8
[    3.622626] REGS: cf81f9d0 TRAP: 0700   Not tainted  (2.6.24-ts-powerpc)
[    3.629318] MSR: 00029032 <EE,ME,IR,DR>  CR: 22044082  XER: 20000000
[    3.635666] TASK = cf815000[1] 'swapper' THREAD: cf81e000
[    3.640881] GPR00: c012aafc cf81fa80 cf815000 000000a2 000024a3 ffffffff 00000006 c0429798
[    3.649228] GPR08: 00002403 00000000 00000000 d10563d0 82044082 100ae370 c034686c 00020000
[    3.657574] GPR16: 00000000 00000000 cfa7e4b4 0000e002 0000378c 0000e001 0000378c c04314f4
[    3.665920] GPR24: cfa7b340 00000000 cf9e5d08 0000e002 00000000 cfa7e400 cfb4550c cf9e5d08
[    3.674440] Call Trace:
[    3.676876] [cf81fa80] [c012aafc]  (unreliable)
[    3.681396] [cf81faa0] [c013aa54] [    3.684786] [cf81fac0] [c013ae0c] [    3.688177] [cf81fb30] [c0131668]
[    3.691568] [cf81fbc0] [c0134610] [    3.694959] [cf81fc00] [c01362d4] [    3.698349] [cf81fc20] [c01378ac]
[    3.701740] [cf81fc40] [c01e56ac] [    3.705131] [cf81fc60] [c01e5970] [    3.708521] [cf81fcf0] [c01375f8]
[    3.711912] [cf81fd00] [c0084e68] [    3.715303] [cf81fd20] [c0084f30] [    3.718694] [cf81fd40] [c00a38d4]
[    3.722085] [cf81feb0] [c00a3edc] [    3.725474] [cf81fee0] [c0387cb8] [    3.728865] [cf81fef0] [c0387fa4]
[    3.732256] [cf81ff40] [c03883c8] [    3.735646] [cf81ff50] [c03873f4]
[    3.739037] [cf81fff0] [c001106c]
[    3.742427] Instruction dump:
[    3.745383] 38a5e204 81290004 38a50018 81010008 54e7003a 5529003a 808200b4 7d434a14
[    3.753121] 3c60c034 7d083a14 38635274 481ea695 <0fe00000> 48000000 93df0028 801f000c
[    3.761036] ---[ end trace d7c655fe14ad9a92 ]---
[    3.765645] Kernel panic - not syncing: Attempted to kill init!
[    3.771553] Rebooting in 180 seconds..


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