Re: kern/56925: Amd64 server randomly panics

[BERTRAND Joël <joel.bertrand%systella.fr@localhost>]

Michael van Elst a écrit :
> The following reply was made to PR kern/56925; it has been noted by GNATS.
> 
> From: mlelstv%serpens.de@localhost (Michael van Elst)
> To: gnats-bugs%netbsd.org@localhost
> Cc: 
> Subject: Re: kern/56925: Amd64 server randomly panics
> Date: Fri, 15 Jul 2022 13:18:16 -0000 (UTC)
> 
>  riastradh%NetBSD.org@localhost (Taylor R Campbell) writes:
>  
>  > I see two problems in the ccb_timeout and wake_ccb logic:
>  > 
>  > 1. ccb_timeout is called from softint context, and calls wake_ccb,
>  
>  ccb_timeout_co is the callout function (i.e. softint context) that queues
>  the ccb via ccb_tchain and signals the cleanup thread. The operation is
>  protected by a mutex at IPL_BIO.
>  
>  ccb_timeout is then called later from the cleanup thread.

	Hello,

	Do you have some news about this PR ? This server has crashed twice
last night (one panic and a deadlock that could be related). I can do
some tests but I have no idea to fix this issue.

	Best regards,

	JB