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hi,
today i played around with some benchmarks i do from time to time [1] this time with 2.4.24 and the cryptoloop patch (patch-cryptoloop-jari-2.4.22.0, applies to 2.4.24 too) when using this machine (powerpc)
http://www.nerdbynature.de/bits/sheep/2.4.24-benh/ver_linux
in short: i have a 700 MB file, losetup a loop device with a cipher (aes,cast5,cast6,blowfish,serpent,twofish), create an ext3 fs on it. then test with "tiobench" (size is only about 100MB). but the benchmarks did not last very long, i have these messages in my syslog:
Dec 21 23:42:45 sheep kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) Dec 21 23:42:45 sheep kernel: VM: killing process nmbd Dec 21 23:43:07 sheep kernel: __alloc_pages: 0-order allocation failed (gfp=0x1d2/0) [...] Dec 23 22:26:37 sheep kernel: __alloc_pages: 5-order allocation failed (gfp=0x20/0) Dec 23 22:26:39 sheep kernel: __alloc_pages: 5-order allocation failed (gfp=0x20/0) Dec 23 22:26:40 sheep kernel: __alloc_pages: 5-order allocation failed (gfp=0x20/0) Dec 23 22:26:41 sheep kernel: __alloc_pages: 5-order allocation failed (gfp=0x20/0) [...] Feb 16 15:17:21 sheep kernel: __alloc_pages: 0-order allocation failed (gfp=0x30/0)
full log excerpt on: http://www.nerdbynature.de/bits/sheep/2.4.24/messages-alloc_pages
i am then able to sysrq-S, but not all partitions can be synced, then i try sysrq-E / -I / -U with no luck, nothing seems to be written/read to/from the disk, sysrq-B works :-)
i did manage to make earlier tests with different filesystems [2] and linux 2.4.22 and have never had these messages.
Thanks for your hints, Christian.
[1] http://www.nerdbynature.de/bench/ [2] http://www.nerdbynature.de/bench/sheep/ - -- BOFH excuse #62:
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- Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/
