Hi Sergey, Minchan, all,
On (22/11/07 23:42), Petr Vorel wrote: [..]
15859712 0 0 26214400 196608 242 0 zram01 7 TINFO: /sys/block/zram1/mm_stat 15859712 0 0 26214400 196608 242 0 zram01 7 TINFO: /sys/block/zram1/mm_stat 15859712 0 0 26214400 196608 242 0 zram01 7 TINFO: /sys/block/zram1/mm_stat 15859712 0 0 26214400 196608 242 0 zram01 7 TINFO: /sys/block/zram1/mm_stat 15859712 0 0 26214400 196608 242 0 zram01 7 TINFO: /sys/block/zram1/mm_stat 15859712 0 0 26214400 196608 242 0 zram01 7 TINFO: /sys/block/zram1/mm_stat 15859712 0 0 26214400 196608 242 0 zram01 7 TBROK: "loop_read_mem_used_total /sys/block/zram1/mm_stat" timed out
Looking at mm_stat_show(), mem_used can be 0 when mm_stat_show() is called on un-initialized device
... u64 orig_size, mem_used = 0; long max_used; ssize_t ret;
memset(&pool_stats, 0x00, sizeof(struct zs_pool_stats));
down_read(&zram->init_lock); if (init_done(zram)) { mem_used = zs_get_total_pages(zram->mem_pool); zs_pool_stats(zram->mem_pool, &pool_stats); }...
Can you check if init_done() returns true in your tests?
I'm sorry, it took me some time to find machine where I'd be compile kernel. Yes, init_done() returns non-zero (1), code goes into if clause and sets mem_used. I'll check also for mem_used value.
Kind regards, Petr