Re: kern/38035: repeatable kernel lock spinout

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR kern/38035; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: YAMAMOTO Takashi <yamt%mwd.biglobe.ne.jp@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, ad%NetBSD.org@localhost
Subject: Re: kern/38035: repeatable kernel lock spinout
Date: Fri, 15 Feb 2008 18:08:47 +0100

 slightly different this time: first cpu:
 
 _kernel_lock()
 sleepq_block()
 iic_smbus_intr_thread()
 
 second cpu:
 
 lapic_gettick()
 lapic_delay(2)
 fxp_intr()+0x162
 intr_biglock_wrapper
 
 and the interrupted lwp:
 
 uvm_unmap_remove()
 uvmspace_free()
 exit1()
 sys_exit()
 syscall()
 
 I still have the machine in ddb - let me know what you want to know off-list.
 
 Martin