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Re: kern/46592: lib/libc/sys/t_mmap cause kernel panic

The following reply was made to PR kern/46592; it has been noted by GNATS.

From: Manuel Bouyer <>
Subject: Re: kern/46592: lib/libc/sys/t_mmap cause kernel panic
Date: Tue, 12 Jun 2012 12:29:22 +0200

 On Tue, Jun 12, 2012 at 10:15:04AM +0000, Martin Husemann wrote:
 >  >     mmap_block: panic: kernel diagnostic assertion "vp == 
 > vp->v_specnode->sn_dev->sd_bdevvp" failed: file 
 > "/home/builds/ab/HEAD/src/sys/miscfs/specfs/spec_vnops.c", line 891 
 >  Note that these do not seem to be reproducable when running NetBSD/i386 nor
 >  NetBSD/amd64 - but only with XEN.
 I'm not sure what the difference would be between native and Xen.
 Could it be that a module is not built with DIAGNOSTIC ? Xen doesn't
 use modules.
 Manuel Bouyer <>
      NetBSD: 26 ans d'experience feront toujours la difference

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