On 1/11/24 03:21, Lexi Winter wrote:
hi list,i'm having a recurring problem with poudriere that i hope someone might have an idea about. i'm building packages with poudriere on a system with 32GB memory, with tmpfs and md disabled in poudriere (so it's using ZFS only) and with the ZFS ARC limited to 8GB. running poudriere produces many kernel log messages like this: Jan 10 21:40:00 ilythia kernel: swap_pager: out of swap space Jan 10 21:40:00 ilythia kernel: swp_pager_getswapspace(2): failed Jan 10 22:41:55 ilythia kernel: swap_pager: out of swap space Jan 10 22:41:55 ilythia kernel: swp_pager_getswapspace(21): failed Jan 10 23:48:03 ilythia kernel: swap_pager: out of swap space Jan 10 23:48:03 ilythia kernel: swp_pager_getswapspace(8): failed Jan 11 00:05:00 ilythia kernel: swp_pager_getswapspace(1): failed Jan 11 00:21:45 ilythia kernel: swp_pager_getswapspace(10): failed this is despite the system having a large amount of "Inact" memory according to top(1): Mem: 3828M Active, 15G Inact, 2921M Laundry, 9263M Wired, 1559M Buf, 892M Free ARC: 3113M Total, 994M MFU, 884M MRU, 39M Anon, 49M Header, 1139M Other 1296M Compressed, 4130M Uncompressed, 3.19:1 Ratio Swap: 2048M Total, 2048M Used, 8192B Free, 99% Inuse from what i can tell, these swap errors don't cause any issues with the poudriere build, but they do seem to hinder interactive usage by causing long hangs. does anyone have some idea what's going on here? i don't really understand why the system has used 100% of available swap space when it has plenty of Inact memory it could free to fulfill requirements.
My first guess would be that you are using a tmpfs tmp dir which uses swap as the backing-storage which is now full. Configure poudriere with USE_TMPFS=no to prevent this. Hope this helps. Regards, Ronald.
