[Bug 453579] Re: corruption of large files reported with linux 2.6.31-14.46 on ext4

[Kai Blin]

Steve, I can confirm that in my setup.

Test is easy, as described by Scott.

I've copied over the first iso I found on my PC to my fileserver running
an ext4 /data partition. Then I had some fun with md5sum:

kai at woodstock:/data/iso$ md5sum en_win_xp_pro_n.iso
138468d380b84e6b9e9a8648efb97143  en_win_xp_pro_n.iso
kai at woodstock:/data/iso$ md5sum en_win_xp_pro_n.iso
d6b2bc09fc4df1876005f20b62364f6e  en_win_xp_pro_n.iso
kai at woodstock:/data/iso$ sync
kai at woodstock:/data/iso$ md5sum en_win_xp_pro_n.iso
91cf62eee1e159774c8acee03cf88f39  en_win_xp_pro_n.iso
kai at woodstock:/data/iso$ md5sum en_win_xp_pro_n.iso
d11a45c61466f2b22757e0e449e2fe90  en_win_xp_pro_n.iso
kai at woodstock:/data/iso$ md5sum en_win_xp_pro_n.iso
f8e682be3590d48e0c266d15a804e3af  en_win_xp_pro_n.iso
kai at woodstock:/data/iso$ md5sum en_win_xp_pro_n.iso
d11a45c61466f2b22757e0e449e2fe90  en_win_xp_pro_n.iso
kai at woodstock:/data/iso$ md5sum en_win_xp_pro_n.iso
d11a45c61466f2b22757e0e449e2fe90  en_win_xp_pro_n.iso

Note that it seems to stabilized on d11a45c61466f2b22757e0e449e2fe90
after bouncing off from there once. Also note that calling sync seems to
have no effect on the bug.

That's certainly a fun one.

-- 
corruption of large files reported with linux 2.6.31-14.46 on ext4
https://bugs.launchpad.net/bugs/453579
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