Messages in this thread | | | From | Daniel Wang <> | Date | Wed, 12 Dec 2018 18:39:42 -0800 | Subject | Re: 4.14 backport request for dbdda842fe96f: "printk: Add console owner and waiter logic to load balance console writes" |
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> Additionally, for dbdda842fe96f to work as expected we really need fd5f7cde1b85d4c. Otherwise printk() can schedule under console_sem and console_owner, which will deactivate the "load balance" logic.
It looks like fd5f7cde1b85d4c got into 4.14.82 that was released last month.
On Wed, Dec 12, 2018 at 6:27 PM Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> wrote: > > On (12/12/18 16:40), Daniel Wang wrote: > > In case this was buried in previous messages, the commit I'd like to > > get backported to 4.14 is dbdda842fe96f: printk: Add console owner and > > waiter logic to load balance console writes. But another followup > > patch that fixes a bug in that patch is also required. That is > > c14376de3a1b: printk: Wake klogd when passing console_lock owner. > > Additionally, for dbdda842fe96f to work as expected we really > need fd5f7cde1b85d4c. Otherwise printk() can schedule under > console_sem and console_owner, which will deactivate the "load > balance" logic. > > -ss
-- Best, Daniel [unhandled content-type:application/pkcs7-signature] | |