[kernel] bug#83: marked as done (Unexpected FPU exception building CVS Debian Package)

Thu, 12 Apr 2001 17:48:02 -0600 (MDT)

X-PA-RISC Linux-PR-Message: closed 83

Your message dated Thu, 12 Apr 2001 17:37:17 -0600
with message-id <E14nqeL-0004fh-00@noam.fc.hp.com>
and subject line fixed FPU stuff
has caused the attached bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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dann frazier
(administrator, PA-RISC Linux bugs database)

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To: submit@bugs.parisc-linux.org
Subject: Unexpected FPU exception building CVS Debian Package
Date: Tue, 20 Mar 2001 15:03:55 -0700
From: Paul Bame <bame@fc.hp.com>
Message-Id: <E14fUEN-0007bs-00@noam.fc.hp.com>

Package: kernel
Version: 20Mar2001
Severity: normal

While building the CVS Debian package the kernel complains about an
unemulated FPU instruction which turns out to be a fsub,dbl producing
a FPU exception code 9.  None of the status register IEEE exception
bits are set but the I(nexact) exception bit in the status register
is being set.  Debug output:

This is the disassembled instruction:
   23988:       30 0c 2e 16     fsub,dbl fr0,fr12,fr22

The offending command is /usr/bin/pic which is run during the CVS
build because 'groff -Tpic' is used.

pid 266(pic): Unemulated floating instruction:
         exception 0x09:0c2e16 fmt 1 class 3 subop 1
01234567890123456789012345678901 Instruction
      00000011000010111000010110
VZOUICxxxxCQCQCQCQCQCRMxxTDVZOUI FP Status Word
00001000001111111101100001000000
fr0-3    0000000000000000 0000000000000000 0000000000000000 0000000000000000
fr4-7    0000000a066d87d6 00005000c28f5c29 0000000000032000 0000000023d3173a
fr8-11   0000000000000000 102d000000000000 10282064102ed010 102ef81010268010
fr12-15  0000000023d3173a 1028601010139050 102ec010102ce138 102ce138102ce0b0
fr16-19  47d420001028260c 0000000000000002 0000000010298ea4 0004000e000000c1
fr20-23  102ed01047d42000 1028260c1014a808 00000000df58b452 000000019999999a
fr24-27  000000084189374c 0000132f51c10aba 000089d710280c28 00000000000000c1
fr28-31  ffffff05102ef810 00000001101391b8 47d78c0010280c28 0000000000000000

     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00000000000001001111111100001111
r0-3     00000000 00030a38 00023367 000367e8
r4-7     000369b8 faf00d34 0002d000 00030fa0
r8-11    00000000 00033188 00000000 00031a38
r12-15   00030a38 00000001 00030a38 00000000
r16-19   0000e860 0000e860 0000e86c faf03600
r20-23   00032578 400786c4 00023924 c0000000
r24-27   00000000 00000000 000367e8 00030a38
r28-31   4007acb0 faf03c08 faf03640 00023367
sr0-3    00000000 00000167 00000000 00000167
sr4-7    00000167 00000167 00000167 00000167

IASQ: 00000167 00000167 IAOQ: 0002398f 00023993
 IIR: 2e701216    ISR: 103400da  IOR: edb03608
ORIG_R28: 4001e000

---------------------------------------
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To: 83-close@bugs.parisc-linux.org
Subject: fixed FPU stuff
Date: Thu, 12 Apr 2001 17:37:17 -0600
From: Paul Bame <bame@fc.hp.com>
Message-Id: <E14nqeL-0004fh-00@noam.fc.hp.com>

Added FPU emulation handling to kernel.