On Mon, Oct 23, 2017 at 11:48:25PM +0700, Na Nha wrote: > My name is Le Minh nhan, I am a Linux developer. > > When I had used LTP testsuite to test our kernel, I encountered an error. > Testcase "zram02" of LTP testsuite sets 100G disksize to zram, the > kernel says "cannot allocate memory". But there is no problem if I use > other values: 10G,20G...90G to set disksize of zram. The command zramctl uses 64-bit numbers for sizes, so it's without any limitation, but don't forget that kernel uses RAM to allocate it... see https://www.kernel.org/doc/Documentation/blockdev/zram.txt where is more details about the limits, some of the limits is possible set by /sys. Note that zramctl --size modifies disksize attribute only. Karel -- Karel Zak <kzak@xxxxxxxxxx> http://karelzak.blogspot.com -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
