Messages in this thread |  | | | From | (Eric W. Biederman) | | Subject | Re: [Fastboot] [CFT] ELF Relocatable x86 and x86_64 bzImages | | Date | Sat, 05 Aug 2006 10:07:01 -0600 |
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Don Zickus <dzickus@redhat.com> writes:
>> The length error comes from lib/inflate.c >> >> I think it would be interesting to look at orig_len and bytes_out. >> >> My hunch is that I have tripped over a tool chain bug or a weird >> alignment issue. > > I thought so too, but I took vmlinuz images from people (Vivek) who had it > boot on their systems but those images still failed on my two machines. > >> >> The error is the uncompressed length does not math the stored length >> of the data before from before we compressed it. Now what is >> fascinating is that our crc's match (as that check is performed first). >> >> Something is very slightly off and I don't see what it is. > > I printed out orig_len -> 5910532 (which matches vmlinux.bin) > bytes_out -> 5910531 > >> >> After looking at the state variables I would probably start looking >> at the uncompressed data to see if it really was decompressing >> properly. If nothing else that is the kind of process that would tend >> to spark a clue. > > I am not familiar with the code, so very few sparks are flying. I'll > still dig through though. Thanks for the tips.
I guess the interesting thing to do would be to - Recompute the crc to see if we still match. - Possibly instrument of flush_window.
I have a strange feeling that the uncompressed data is getting corrupted after we have flushed the window.
Eric
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