Re: kern/53399: Assert failure in ch_voltag_convert_in called from fpu_eagerswitch()

[Kamil Rytarowski <n54%gmx.com@localhost>]

The following reply was made to PR kern/53399; it has been noted by GNATS.

From: Kamil Rytarowski <n54%gmx.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/53399: Assert failure in ch_voltag_convert_in called from
 fpu_eagerswitch()
Date: Tue, 26 Jun 2018 20:23:39 +0200

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 From: Kamil Rytarowski <n54%gmx.com@localhost>
 To: gnats-bugs%NetBSD.org@localhost
 Message-ID: <b87814fb-9200-dc76-b946-8d8f616270e8%gmx.com@localhost>
 Subject: Re: kern/53399: Assert failure in ch_voltag_convert_in called from
  fpu_eagerswitch()
 References: <pr-kern-53399%gnats.netbsd.org@localhost>
  <20180626180808.5D7DF7A280%mollari.NetBSD.org@localhost>
  <20180626181000.D46727A281%mollari.NetBSD.org@localhost>
 In-Reply-To: <20180626181000.D46727A281%mollari.NetBSD.org@localhost>
 
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 On 26.06.2018 20:10, phil%netbsd.org@localhost wrote:
 plex 3020, quad core Intel(R) Core(TM) i5-4590, 8GB of memory
 >> Description:
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] panic: kernel diagn=
 ostic assertion "pcb->pcb_fpcpu =3D=3D NULL" failed: file "/usr/src/sys/a=
 rch/x86/x86/fpu.c", line 345=20
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] cpu2: Begin traceba=
 ck...
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] vpanic() at netbsd:=
 vpanic+0x16f
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] ch_voltag_convert_i=
 n() at netbsd:ch_voltag_convert_in
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] fpu_eagerswitch() a=
 t netbsd:fpu_eagerswitch+0xd5
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] cpu_switchto() at n=
 etbsd:cpu_switchto+0x56
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] sleepq_block() at n=
 etbsd:sleepq_block+0xaa
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] cv_wait() at netbsd=
 :cv_wait+0xfb
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] fork1() at netbsd:f=
 ork1+0x87e
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] sys___vfork14() at =
 netbsd:sys___vfork14+0x2c
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] syscall() at netbsd=
 :syscall+0x208
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] --- syscall (number=
  282) ---
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] 70da5228adec:
 > Jun 25 14:57:29 steelhead /netbsd: [ 21411.5077674] cpu2: End traceback=
 =2E..
 > Jun 25 14:57:42 steelhead savecore: reboot after panic: [ 21411.5077674=
 ] panic: kernel diagnostic assertion "pcb->pcb_fpcpu =3D=3D NULL" failed:=
  file "/usr/src/sys/arch/x86/x86/fpu.c", line 345=20
 >=20
 
 
 I'm reproducing the same sometimes with building the release.
 
 I'm running a kernel will all the recent as of today kernel patches for
 x86 FPU.
 
 
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