Date: Tue, 13 Sep 2011 00:14:45 +0300 From: Toomas Aas <toomas.aas@raad.tartu.ee> To: questions@freebsd.org Subject: Crash when copying large files Message-ID: <20110913001445.15346yix2qz78j4s@webmail.raad.tartu.ee>
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Hello! I'm trying to move a filesystem to a new larger RAID volume. The old filesystem was using gjournal, and I have also created the new filesystem with gjournal. The FS in question holds the DocumentRoot of our web server, and in its depths, a couple of fairly large (several gigabytes) files are lurking. I've mounted the new FS under /mnt and use tar to transfer the files: cd /mnt tar -c -v -f - -C /docroot . | tar xf - It seems that these large files cause a problem. Sometimes when the process reaches one of these files, the machine reboots. It doesn't create a crashdump in /var/crash, which may be because the system has less swap (2 GB) than RAM (8 GB). Fortunately the machine comes back up OK, except that the target FS (/mnt) is corrupt and needs to be fsck'd. I've tried to re-run the process three times now, and caused the machine to crash as it reaches one or another large file. Any ideas what I should do to avoid the crash? The OS version is 7.3 (amd64). -- Toomas Aas
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