Niltze, Ed- Although I am using your latest Reiser4 patch for Linux kernel 4.12.x on a test 1.2TB (transparent compression) reiser4 root fs, I have seen dmesg generate the following in lesser version patches and in much smaller partitions, i.e., 20Gb -- with transparent compression, too. Your input would be greatly appreciated: [ 3449.944653] reiser4[StorageManager(2383)]: lzo1_alloc (/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]: WARNING: alloc workspace for lzo1 (tfm action = 1) failed [ 3449.944674] reiser4[StorageManager(2383)]: lzo1_alloc (/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]: WARNING: alloc workspace for lzo1 (tfm action = 1) failed [ 3449.944694] reiser4[StorageManager(2383)]: lzo1_alloc (/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]: WARNING: alloc workspace for lzo1 (tfm action = 1) failed [ 3449.944715] reiser4[StorageManager(2383)]: lzo1_alloc (/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/compress/compress.c:241)[edward-878]: WARNING: alloc workspace for lzo1 (tfm action = 1) failed [snip] ( the above replicate for about two(2) thousand lines ) Please note that the error above is not immediate but is triggered possibly by multiple events run simultaneously, i.e., plugged 1TB USB hard disk with multiple partitions where copy operation to local disk is being run; another copy operation to-from local hard disk itself on same filesystem; installing additional packages, building local software, etc. Subsequently system slows down in latency and fan use increases in all instances. Thank you in advance for your insight. Best Professional Regards. -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html