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Re: kern/55437: Panic: fpudna from kernel

The following reply was made to PR kern/55437; it has been noted by GNATS.

From: Manuel Bouyer <>
Subject: Re: kern/55437: Panic: fpudna from kernel
Date: Wed, 1 Jul 2020 10:26:46 +0200

 On Tue, Jun 30, 2020 at 08:05:00PM +0000, wrote:
 > Upgraded to latest available build from head (202006300450Z), attempting to compile a new kernel results in panic with string "fpudna from kernel, ip 0xffffffff802292df, trapframe 0xffffce013e4"
 > bt
 > vpanic() at netbsd:vpanic+0x152
 > snprintf() at netbsd:snprintf
 > fpu_set_default_cw() at netbsd:fpu_set_default_cw     (no address here - sevan)
 > Xtrap07() at netbsd:Xtrap07+0xbd
 > cpu_switchto() at netbsd:cpu_switchto+0xa1
 > idle_loop() at netbsd:idle_loop+0x180
 I've seen it in the latest Xen test runs too:
 Manuel Bouyer <>
      NetBSD: 26 ans d'experience feront toujours la difference

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