Red Hat Bugzilla – Bug 220328
possible data corruption when using MAP_SHARED
Last modified: 2014-08-11 01:40:31 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.5 (like Gecko)
Description of problem:
Data corruption was observed when using MAP_SHARED files on ext3 (not sure if
limited to ext3) on various architectures (i686, x86_64, arm).
This error was traced back to the dirty page tracking for shared mappings
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.download a large (several times larger than machine memory) multi file
torrent with rtorrent (version 0.7.0 with libtorrent 0.11.0) from mutliple
The hash check after the download completes indicates data corruption
After a few days long bughunt on lkml it was found that page_mkclean_one() is
A proposed patch is currently under discussion.
Start of thread:
current proposed patch:
Created attachment 144099 [details]
current proposed patch - (verified to fix the issue on x86_64)
Sorry Peter, didn't know about this one - should it be dup'd to 220963 now?
*** This bug has been marked as a duplicate of 220963 ***