Re: PKU usage improvements for threads

From: Fangfei Yang
Date: Fri Sep 02 2022 - 20:16:58 EST

Next message: syzbot: "Re: [syzbot] INFO: task hung in blk_freeze_queue (3)"
Previous message: kernel test robot: "[driver-core:driver-core-linus 9/9] drivers/base/arch_topology.c:727:24: warning: returning 'int' from a function with return type 'const struct cpumask *' makes pointer from integer without a cast"
In reply to: Fangfei Yang: "Re: PKU usage improvements for threads"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

> sys_sigaltstack() is already pretty much useless with SHSTK, and it’s kinda busted with AVX512. How about we just add a whole new non-kludgy API?

Hi, why is that useless? Signal is not going to change the SSP, all it needs to do is creating a token that can be restored by sigreturn in the future on the current shadow stack.
Can you provide some examples about that? Thank you.

Next message: syzbot: "Re: [syzbot] INFO: task hung in blk_freeze_queue (3)"
Previous message: kernel test robot: "[driver-core:driver-core-linus 9/9] drivers/base/arch_topology.c:727:24: warning: returning 'int' from a function with return type 'const struct cpumask *' makes pointer from integer without a cast"
In reply to: Fangfei Yang: "Re: PKU usage improvements for threads"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]