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37df000637
I.e., it's not necessary that FN be up or even rendering. Note that all is was still without NOR locking.
92 lines
3.1 KiB
Plaintext
92 lines
3.1 KiB
Plaintext
--- Tue 2011-09-06 ------------------------------------------------------------
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Running "loop": power-cycle, sleep 2 s, jtag-boot, sleep 70 seconds,
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which is enough to boot into FN and render "The Tunnel" for a moment,
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then power-cycle again (off-time is 5 s).
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Note that the test loop is "open-loop" and will cycle also past any
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problems. The first time a corrupt standby (or any other issue) is
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observed may therefore be well after the actual event.
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1: started around 11:53 (M1 configuration is original, without locking)
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(around 500) visually checked boot process; standby was reached normally
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--- Wed 2011-09-07 ------------------------------------------------------------
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645: neocon stopped working (around 01:58)
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666: detected neocon failure at run 666: restarted neocon; urjtag failed
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this cycle; back to normal at 667
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684: checked LEDs again (first time since ~500) and found that standby
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may be failing. stopping test at 685 (around 02:50) for
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investigation.
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Downloaded the standby bitstream:
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wget https://raw.github.com/milkymist/scripts/master/scripts/reflash_m1.sh
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chmod 755 reflash_m1.sh
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./reflash_m1.sh --read-flash
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Found two corruptions in the standby bitstream:
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diff -u <(hexdump -C standby.fpg) <(hexdump -C /home/root/.qi/milkymist/read-flash/2011...)
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-00000080 00 00 4c 83 00 00 4c 87 00 00 cc 85 d8 47 cc 43 |..L...L......G.C|
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+00000080 00 00 4c 83 00 00 4c 87 00 00 c4 80 d8 47 cc 43 |..L...L......G.C|
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-00002840 00 08 cc 26 00 00 00 00 00 00 00 00 0c 44 00 98 |...&.........D..|
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+00002840 00 00 cc 26 00 00 00 00 00 00 00 00 0c 44 00 98 |...&.........D..|
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CRC-checked the partitions:
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git clone git://github.com/milkymist/milkymist
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cd milkymist/tools/
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gcc -Wall -I. -o flterm flterm.c
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wget http://milkymist.org/updates/current/for-rc3/boot.4e53273.bin
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./flterm --port /dev/ttyUSB0 --kernel boot.4e53273.bin
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serialboot
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a
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only standby.fpg failed the CRC check
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Reflashed the standby bitstream:
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wget http://milkymist.org/updates/2011-07-13/for-rc3/fjmem.bit
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(or http://milkymist.org/updates/fjmem.bit.bz2)
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wget http://milkymist.org/updates/current/standby.fpg
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jtag
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cable milkymist
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detect
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instruction CFG_OUT 000100 BYPASS
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instruction CFG_IN 000101 BYPASS
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pld load fjmem.bit
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initbus fjmem opcode=000010
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frequency 6000000
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detectflash 0
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endian big
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flashmem 0 standby.fpg noverify
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M1 enters standby normally again.
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Running "loop2": power-cycle, sleep 2 s, jtag-boot, sleep 10 seconds,
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which is enough to begin (but not finish) booting RTEMS, then
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power-cycle again (off-time is 5 s).
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1: started around 05:01. Observed until about 200-300 (06:00-06:30)
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that standby was okay.
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~730 (08:48): observed that standby didn't load anymore (note: due to
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a bug in labsw, power is not turned on in about 5-10% of the cycles,
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so the real cycle count should be around 650-700.)
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Standby bitstream difference:
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-00000080 00 00 4c 83 00 00 4c 87 00 00 cc 85 d8 47 cc 43 |..L...L......G.C|
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+00000080 00 00 00 00 00 00 4c 87 00 00 cc 85 d8 47 cc 43 |......L......G.C|
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Reflashed standby and locked the NOR. Testing with loop2 again.
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1 (09:18): started
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