Re: sparc/1135: -O2 dangerous on Sparc 10

["David E. Cross" <crossd_(_at_)_cs_(_dot_)_rpi_(_dot_)_edu>]

The following reply was made to PR sparc/1135; it has been noted by GNATS.

From: "David E. Cross" <crossd_(_at_)_cs_(_dot_)_rpi_(_dot_)_edu>
To: Theo de Raadt <deraadt_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org>
Cc: crossd_(_at_)_don_(_dot_)_cs_(_dot_)_rpi_(_dot_)_edu, gnats_(_at_)_openbsd_(_dot_)_org, crossd_(_at_)_cs_(_dot_)_rpi_(_dot_)_edu
Subject: Re: sparc/1135: -O2 dangerous on Sparc 10 
Date: Thu, 09 Mar 2000 21:34:37 -0500

 Oops, sorry.
 
 Here is a dmesg and some other information.
 
 -----
 > *don /tmp $ tar xzpf /servers/sys/dist/base26.tar.gz ./bin/ksh
 > *don /tmp $ ./bin/ksh
 > $ which ls
 > /bin/ls
 > $ which more
 > /usr/bin/more
 > $ /bin/ls | /bin/more    (this always triggers the next line)
 > Segmentation fault
 > *don /tmp $ /bin/ksh     (This is a recompiled /bin/ksh)
 > $ /bin/ls | /usr/bin/more
 > bin
 > ksh
 > pbad.tZ3723
 > sh
 > $ exit
 > *don /tmp $ 
 -----
 
 -----
 Kernel Config file is at http://www.cs.rpi.edu/~crossd/DISKLESS
 -----
 
 -----dmesg-----
 Copyright (c) 1982, 1986, 1989, 1991, 1993
         The Regents of the University of California.  All rights reserved.
 Copyright (c) 1995-1999 OpenBSD. All rights reserved.  http://www.OpenBSD.org
 
 OpenBSD 2.6 (DISKLESS) #0: Wed Mar  8 18:01:19 EST 2000
     root_(_at_)_trabant_(_dot_)_cs_(_dot_)_rpi_(_dot_)_edu:/usr/src/sys/arch/sparc/compile/DISKLESS
 real mem = 49659904
 avail mem = 44318720
 using 200 buffers containing 2482176 bytes of memory
 bootpath: /iommu_(_at_)_f,e0000000/sbus_(_at_)_f,e0001000/ledma_(_at_)_f,400010/le_(_at_)_f,c00000
 mainbus0 (root): SUNW,SPARCstation-10
 cpu0 at mainbus0: TMS390Z50 v1 @ 36 MHz, on-chip FPU
 cpu0: physical 20K instruction (64 b/l), 16K data (32 b/l) cache enabled
 obio0 at mainbus0
 clock0 at obio0 addr 0xf1200000: mk48t08 (eeprom)
 timer0 at obio0 addr 0xf1300000 delay constant 16
 zs0 at obio0 addr 0xf1100000 pri 12, softpri 6
 zs1 at obio0 addr 0xf1000000 pri 12, softpri 6
 fdc0 at obio0 addr 0xf1700000 pri 11, softpri 4: chip 82077
 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
 auxreg0 at obio0 addr 0xf1800000
 power0 at obio0 addr 0xf1a01000
 iommu0 at mainbus0 ioaddr 0xe0000000: version 0x3/0x0, page-size 4096, range 64MB
 sbus0 at iommu0: clock = 18 MHz
 dma0 at sbus0 slot 15 offset 0x400000: rev 2
 esp0 at dma0 offset 0x800000 pri 4: ESP200, 40MHz, SCSI ID 7
 scsibus0 at esp0: 8 targets
 sd0 at scsibus0 targ 3 lun 0: <SEAGATE, ST1480   SUN0424, 7516> SCSI2 0/direct fixed
 sd0: 411MB, 1476 cyl, 9 head, 63 sec, 512 bytes/sec, 843284 sec total
 ledma0 at sbus0 slot 15 offset 0x400010: rev 2
 le0 at ledma0 offset 0xc00000 pri 6: address 08:00:20:1a:e0:ba
 le0: 16 receive buffers, 4 transmit buffers
 bpp0 at sbus0 slot 15 offset 0x4800000: DMA2
 SUNW,DBRIe at sbus0 slot 15 offset 0x8010000 not configured
 cgsix0 at sbus0 slot 2 offset 0x0: SUNW,501-1672, 1152 x 900, rev 7 (console)
 cgsix0: attached to /dev/fb
 kbd: type = 4, layout = 0x22
 nfs_boot: using network interface 'le0'
 nfs_boot: client_addr=128.113.96.194
 nfs_boot: server_addr=128.113.96.153 hostname=don.cs.rpi.edu
 nfs_boot: gateway=128.113.96.254
 root on wobble:/exports/clients2/openbsd2.6-sparc/root
 -----
 
 --
 David Cross                               | email: crossd_(_at_)_cs_(_dot_)_rpi_(_dot_)_edu 
 Acting Lab Director                       | NYSLP: FREEBSD
 Systems Administrator/Research Programmer | Web: http://www.cs.rpi.edu/~crossd 
 Rensselaer Polytechnic Institute,         | Ph: 518.276.2860            
 Department of Computer Science            | Fax: 518.276.4033
 I speak only for myself.                  | WinNT:Linux::Linux:FreeBSD