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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:24:58 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:27:06 +0000
commit33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch)
tree406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/818647
parentadedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff)
downloademulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz
emulator-bug-study-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip
add launchpad bug reports without comments
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diff --git a/results/scraper/launchpad-without-comments/818647 b/results/scraper/launchpad-without-comments/818647
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+Getting segmentation fault when trying to boot FreeBSD
+
+wkoszek@wkoszek:~/bin/qemu/qemu$ git log | head -1
+commit c886edfb851c0c590d4e77f058f2ec8ed95ad1b5
+
+wkoszek@wkoszek:~/o/freebsd/sys/boot/i386$ qemu-system-sparc64 --version
+QEMU emulator version 0.15.50, Copyright (c) 2003-2008 Fabrice Bellard
+
+wkoszek@wkoszek:~/o/freebsd/sys/boot/i386$ uname -a
+Linux wkoszek 2.6.38-10-generic #46-Ubuntu SMP Tue Jun 28 15:05:41 UTC 2011 i686 i686 i386 GNU/Linux
+
+Qemu built with default settings (./configure --prefix=<path> && make && make install)
+
+I run FreeBSD ISO image:
+/home/wkoszek/bin/qemu-dynamic/bin/qemu-system-sparc64 -m 1024 -cdrom ~/Pulpit/iso/FreeBSD-7.4-RELEASE-sparc64-bootonly.iso -hda ~/Pulpit/iso/freebsd_sparc64.qcow2 -nographic -boot d
+
+Configuration device id QEMU version 1 machine id 0
+kernel cmdline 
+CPUs: 1 x SUNW,UltraSPARC-IIi
+UUID: 00000000-0000-0000-0000-000000000000
+Welcome to OpenBIOS v1.0 built on Jul 20 2011 21:17
+  Type 'help' for detailed information
+Trying cdrom:f...
+Not a bootable ELF image
+Loading a.out image...
+Loaded 7680 bytes
+entry point is 0x4000
+
+Jumping to entry point 0000000000004000 for type 0000000000000005...
+switching to new context: entry point 0x4000 stack 0x00000000ffe86b49
+ 
+>> FreeBSD/sparc64 boot block
+   Boot path:   cdrom:f
+   Boot loader: /boot/loader
+Consoles: Open Firmware console  
+
+Booting with sun4u support.
+Boot path set to cdrom:a
+
+FreeBSD/sparc64 bootstrap loader, Revision 1.0
+(<email address hidden>, Fri Feb 18 05:38:31 UTC 2011)
+bootpath="cdrom:a"
+Loading /boot/defaults/loader.conf 
+/boot/kernel/kernel data=0x8d1f48+0x82f88 syms=[0x8+0x88ec0+0x8+0x76966]
+|
+Unimplemented service milliseconds ([0] -- [1])
+Hit [Enter] to boot immediately, or any other key for command prompt.
+Unimplemented service milliseconds ([0] -- [1])
+Unimplemented service milliseconds ([0] -- [1])
+Unimplemented service milliseconds ([0] -- [1])
+Unimplemented service milliseconds ([0] -- [1])
+Unimplemented service milliseconds ([0] -- [1])
+Unimplemented service milliseconds ([0] -- [1])
+
+I press CTRL + C and I get out of the looped warning about "unimplemented service". Then I see:
+
+Type '?' for a list of commands, 'help' for more detailed help.
+OK boot
+jumping to kernel entry at 0xc0078000.
+BOOTUnhandled Exception 0x0000000000000034
+PC = 0x00000000c0637454 NPC = 0x00000000c0637458
+
+I wanted to start FreeBSD debugging here - I pressed 'CTRL+A c', I was dropped to the monitor.
+
+FRom the monitor I typed:
+
+Stopping execution
+QEMU 0.15.50 monitor - type 'help' for more information
+(qemu) x 0xc0078000
+00000000c0078000: Cannot access memory
+(qemu) x 0x00000000c0637454 
+00000000c0637454: Cannot access memory
+(qemu) x 0x00000000c0637458
+00000000c0637458: Cannot access memory
+(qemu) xp 0xc0078000
+Segmentation fault
+
+IMO it shouldn't have crashed.
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