Hi Thomas, never tried a local copy with 1 or 2G files.
This bug renders my system useless as I move big files around, for that reason I now moved to FreeBSD. What did you do about this issue?? Installed older version of Ubuntu? Greetz, Huib > Have you tried copying locally with very large files (1-2 GB)? The > corruption didn't occur for me with smaller files locally. > > On Sun, Aug 17, 2008 at 8:15 AM, Huib Smeets <[EMAIL PROTECTED]> wrote: >> Hi, >> >> on a clean install of ubuntu 8.04 (AMD kernel version) I get this very >> same error: random bytes get mangled but the byte value as documented >> above always differ value 10! >> >> After reverting back to the i386 kernel I still have the same error. The >> corruption only happens in network traffic (ftp or samba) when I upload >> the file to the linux server. >> >> I changed from AMD to I386 kernel --> problem persists >> I swapped NIC's from onboard attansic/atheros (ATL1) to Intel Pro >> (E1000E) --> problem persists >> copy files locally -> no problem >> I installed FreeBSD 7 -> no problem >> >> Seems to be network related but not the specific driver and it happens >> only to the bigger files (>20Mbytes) >> >> Hardware: >> - Asus M3A-H/HDMI 780G >> - AMD Athlon 4450e >> >> -- >> Regression: File corruption on amd64/nVidia with 2.6.22-14-generic >> https://bugs.launchpad.net/bugs/162478 >> You received this bug notification because you are a direct subscriber >> of the bug. >> > > > -- > http://resc.smugmug.com/ > AIM: ferret taskforce > > -- > Regression: File corruption on amd64/nVidia with 2.6.22-14-generic > https://bugs.launchpad.net/bugs/162478 > You received this bug notification because you are a direct subscriber > of the bug. > > Status in âlinux-ubuntu-modules-2.6.22â source package in Ubuntu: > Invalid > > Bug description: > I upgraded from Feisty to Gutsy using the update manager, and a few days > later I started having problems. First, it showed up as bad downloads > using apt-get (one of which happened to be libc6, which made my system > unbootable for a while). Then apt-get started segfaulting (bad files in > /var/cache/apt). Later, I downloaded a 20MB zip file I was trying to use > 3 times, and got 3 different files. > > At first, I thought it was a network problem, but now I have reproduced it > using only disk accesses. I create a 1GB file from /dev/urandom, and copy > it to several other files, to force all of RAM to be used (I have 2GB). > Then, I run md5sum on all of the files and get different results for each > one. The differences in the files are really suggestive of a memory > problem, but I have run memtest86+ for a couple of passes and it finds > nothing. > > Output of cmp -lb original.bin copied1.bin: > 584294856 227 M-^W 237 M-^_ > 593924424 64 4 74 < > 633975304 224 M-^T 234 M-^\ > 640479752 202 M-^B 212 M-^J > 644645384 163 s 173 { > 656228872 322 M-R 332 M-Z > 662528520 46 & 56 . > 662782472 204 M-^D 214 M-^L > 676360712 167 w 177 ^? > 782352584 207 M-^G 217 M-^O > Bit 4 is always switched from 0 to 1. > > I don't think that this is a hardware problem, because I have run > memtest86+ for a couple of passes, and it found no problems. It also does > not occur on 2.6.20-16, as far as I can tell (I've tried the procedure > above several times and got no differences in the files). I also tried > booting with iommu=soft, which did not fix the problem. > > I think that this is a file writing problem, rather than a reading > problem, because I have checked the md5sums of the corrupted files and > they are consistent between kernel versions/reboots. > > I'll attach dmesg, cpuinfo, lspci, etc. in a moment. > -- Regression: File corruption on amd64/nVidia with 2.6.22-14-generic https://bugs.launchpad.net/bugs/162478 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
