while trying to figure out why my "vgchange -a y" sometimes works
and sometimes does not, I've come to the following problem:
# dd if=/proc/partitions bs=512|wc -l
1+1 records in
1+1 records out
12
# dd if=/proc/partitions bs=128k|wc -l
0+1 records in
0+1 records out
32
I.e. if you read the /proc/partitions in single read() call,
it gets read OK. However, if you read() with smaller-sized blocks,
you get the truncated contents.
Are applications expected to read the whole /proc file
in one read()?
-Yenya
-- | Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> | | GPG: ID 1024/D3498839 Fingerprint 0D99A7FB206605D7 8B35FCDE05B18A5E | | http://www.fi.muni.cz/~kas/ Czech Linux Homepage: http://www.linux.cz/ | |-- If you start doing things because you hate others and want to screw --| |-- them over the end result is bad. --Linus Torvalds to the BBC News --| - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/