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| -rw-r--r-- | open_issues/virtualbox.mdwn | 61 |
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diff --git a/open_issues/virtualbox.mdwn b/open_issues/virtualbox.mdwn new file mode 100644 index 00000000..4d4db8d8 --- /dev/null +++ b/open_issues/virtualbox.mdwn @@ -0,0 +1,61 @@ +[[!meta copyright="Copyright © 2011 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!meta title="xattr: extended attributes"]] + +[[!tag open_issue_gnumach]] + +Running GNU Mach in VirtualBox crashes during initialization. + +IRC, freenode, #hurd, 2011-08-15 + + <BlueT_> HowTo Reproduce: 1) Use `reboot` to reboot the system. 2) Once you see the Grub menu, turn off the debian hurd box. 3) Let the box boot normally, and wait for the error/crash/reboot. 4) The error/crash will happen twice and it's reboot automatically. The 3rd boot will success. + + <BlueT_> root@dhurd:/boot# addr2line -f -e gnumach-1.3.99-486-dbg-copy 0x106c93 0x1556a5 0x152c54 + <BlueT_> copyoutmsg + <BlueT_> /home/buildd/build/chroot-sid/home/buildd/byhand/gnumach/build-dbg/../i386/i386/locore.S:1289 + <BlueT_> exec_load + <BlueT_> /home/buildd/build/chroot-sid/home/buildd/byhand/gnumach/build-dbg/../kern/elf-load.c:80 + <BlueT_> user_bootstrap + <BlueT_> /home/buildd/build/chroot-sid/home/buildd/byhand/gnumach/build-dbg/../kern/bootstrap.c:756 + + i386/i386/locore.S:1289 is + + movl $USER_DS,%eax /* use user data segment for accesses */ +=> mov %ax,%es + + <youpi> oh, wait, it's not even the data access which poses problem + <youpi> but the use of $USER_DS + <youpi> ew + <youpi> looks like a gdt initialization emulation issue in virtualbox... + + + <BlueT_> just found that at the second crash, the address is different + <BlueT_> 2nd time: + <BlueT_> addr2line -f -e gnumach-1.3.99-486-dbg-copy 0x1068bd 0x152c74 + <BlueT_> _kret_popl_es + <BlueT_> /home/buildd/build/chroot-sid/home/buildd/byhand/gnumach/build-dbg/../i386/i386/locore.S:527 + <BlueT_> user_bootstrap + <BlueT_> /home/buildd/build/chroot-sid/home/buildd/byhand/gnumach/build-dbg/../kern/bootstrap.c:765 + + i386/i386/locore.S:527 is: + +_return_from_kernel: +_kret_popl_gs: + popl %gs /* restore segment registers */ +_kret_popl_fs: + popl %fs +_kret_popl_es: +=> popl %es +_kret_popl_ds: + + <youpi> looks again like a $USER_DS issue + <youpi> what's interesting is that that one means that $USER_DS did load in %es fine at least once + <youpi> and it's the reload that fails |