From mboxrd@z Thu Jan  1 00:00:00 1970
From: erik quanstrom <quanstro@quanstro.net>
Date: Sat,  1 Mar 2014 22:14:32 -0500
To: 9fans@9fans.net
Message-ID: <4578ec4fd74cba90ed1d96bfb4fa6e25@mikro.quanstro.net>
In-Reply-To: <2cf9720b82e19cf7af8332c8ebddeb76@felloff.net>
References: <2cf9720b82e19cf7af8332c8ebddeb76@felloff.net>
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Subject: Re: [9fans] imagereclaim()
Topicbox-Message-UUID: c0a70426-ead8-11e9-9d60-3106f5b1d025

odd coincidence.  this just happened:

no panlic:o cpou0:p cpu0:s de
adlock/abandoned lock 0xfffffffff21547f0 key 0xfffffffff215483c pc 0xfffffffff01ce2bd proc 1893 held by pc 0xfffffffff01c

acid; src(0xfffffffff01ce2bd)
/sys/src/nix/port/page.c:552
 547		for(f = pghash(daddr); f; f = f->hash){
 548			if(f->image == i && f->daddr == daddr){
 549				unlock(&pga.hashlock);
 550
 551				lock(&pga);
>552				lock(f);
 553				if(f->image != i || f->daddr != daddr){
 554					unlock(f);
 555					unlock(&pga);
 556					return 0;
 557				}

acid; src(0xfffffffff01cbc49)
/sys/src/nix/port/fault.c:148
 143				(*pg)->modref |= PG_REF;
 144				break;
 145			}
 146
 147			lkp = *pg;
>148			lock(lkp);
 149
 150			ref = lkp->ref;
 151			if(ref > 1) {
 152				unlock(lkp);
 153