Re: kern/44418 (FAST_IPSEC and if_wm kernel panic - may affect the whole network stack)

[Matthias Drochner <M.Drochner%fz-juelich.de@localhost>]

The following reply was made to PR kern/44418; it has been noted by GNATS.

From: Matthias Drochner <M.Drochner%fz-juelich.de@localhost>
To: Mindaugas Rasiukevicius <rmind%netbsd.org@localhost>
Cc: Wolfgang Stukenbrock <Wolfgang.Stukenbrock%nagler-company.com@localhost>,
        <gnats-bugs%netbsd.org@localhost>, <netbsd-bugs%netbsd.org@localhost>,
        <gnats-admin%netbsd.org@localhost>
Subject: Re: kern/44418 (FAST_IPSEC and if_wm kernel panic - may affect the 
 whole network stack)
Date: Sat, 19 Feb 2011 13:58:35 +0100

 rmind%netbsd.org@localhost said:
 > While soft-interrupt borrows a current thread context - it has a
 > separate identity, that is, own 'curlwp' value
 
 Thanks for the clarification. (I see - it is IS_LWP on i386.)
 
 > In other words - that is not a condition of recursive lock attempt
 
 So the order of splsoftnet() and mutex_enter(softnet_lock)
 cannot explain a possible recursive locking attempt, right?
 I'm afraid we will not find out where the panic Wolfgang
 reported could have come from without more information.
 Since the current code works at least for Wolfgang and me
 I'll close the PR now.
 
 
 
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