re: toolchain/54703: GCC 8 breaks i386 floppy install

[matthew green <mrg%eterna.com.au@localhost>]

The following reply was made to PR toolchain/54703; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: toolchain-manager%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
    netbsd-bugs%netbsd.org@localhost
Subject: re: toolchain/54703: GCC 8 breaks i386 floppy install
Date: Mon, 18 Nov 2019 15:47:10 +1100

 something is wrong with libsa ustarfs.c.  i instrumented =
 
 read512block() a little, and it shows that something has
 corrupted ustf->uas_volsize after the first call:
 
 NetBSD/x86 ustarfs Primary Bootstrap
 read512block: vda 0 volsize 1466368 vda2vn 0
 read512block: vda 512 volsize -8192 vda2vn 0
 read512block: vda 1024 volsize -8192 vda2vn 0
 read512block: vda 1536 volsize -8192 vda2vn 0
 read512block: vda 2048 volsize -8192 vda2vn 0
 read512block: vda 2560 volsize -8192 vda2vn 0
 read512block: vda 3072 volsize -8192 vda2vn 0
 read512block: vda 3584 volsize -8192 vda2vn 0
 read512block: vda 4096 volsize -8192 vda2vn 0
 read512block: vda 4608 volsize -8192 vda2vn 0
 read512block: vda 5120 volsize -8192 vda2vn 0
 read512block: vda 5632 volsize -8192 vda2vn 0
 read512block: vda 6144 volsize -8192 vda2vn 0
 read512block: vda 6656 volsize -8192 vda2vn 0
 read512block: vda 7168 volsize -8192 vda2vn 0
 read512block: vda 7680 volsize -8192 vda2vn 0
 read512block: vda 8192 volsize -8192 vda2vn -1
 read512block: vda 8704 volsize -8192 vda2vn -1
 read512block: vda 9216 volsize -8192 vda2vn -1
 read512block: vda 9728 volsize -8192 vda2vn -1
 read512block: vda 10240 volsize -8192 vda2vn -1
 
 Please remove disk 1, insert disk 0, and press return...QEMU 4.1.0 monitor=
  - type 'help' for more information
 (qemu) info block
 
 
 .mrg.