Hello, On Fri, Jul 05, 2024 at 03:55:44PM +0800, boy.wu wrote: > From: Boy Wu <boy.wu@xxxxxxxxxxxx> > > In 32bit SMP systems, if the system is stressed on the sys node > by processes, it may cause blkcg_fill_root_iostats to have a concurrent What is sys node? > problem on the seqlock in u64_stats_update, which will cause a deadlock > on u64_stats_fetch_begin in blkcg_print_one_stat. I'm not following the scenario. Can you please detail the scenario where this leads to deadlocks? Thanks. -- tejun
