答复: [PATCH] ipc: prevent lockup on alloc_msg and free_msg

n > 主题: Re: [PATCH] ipc: prevent lockup on alloc_msg and free_msg > > On Thu, 7 Mar 2019 16:10:22 +0800 Li RongQing > wrote: > > > From: Li Rongqing > > > > msgctl10 of ltp triggers the following lockup When CONFIG_KASAN is > > enabled on large memory SMP

Re: [PATCH] ipc: prevent lockup on alloc_msg and free_msg

On Thu, 7 Mar 2019 16:10:22 +0800 Li RongQing wrote: > From: Li Rongqing > > msgctl10 of ltp triggers the following lockup When CONFIG_KASAN > is enabled on large memory SMP systems, the pages initialization > can take a long time, if msgctl10 requests a huge block memory, > and it will block

[PATCH] ipc: prevent lockup on alloc_msg and free_msg

From: Li Rongqing msgctl10 of ltp triggers the following lockup When CONFIG_KASAN is enabled on large memory SMP systems, the pages initialization can take a long time, if msgctl10 requests a huge block memory, and it will block rcu scheduler, so release cpu actively. [79441.630467] rcu: INFO: r