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-[[!meta copyright="Copyright © 2011, 2012 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]]."]]"""]]
-
-[[!toc]]
-
-
-# Running GNU Mach in VirtualBox crashes during initialization.
-
-[[!tag open_issue_gnumach]]
-
-
-## 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
-
-    State is
-
-    cs: 0x8
-    ds: 0x10
-    es: 0x10
-    fs: 0
-    gs: 0
-    ss: 0x10
-    eax: 0x1f
-    ecx: 0x8048000
-    edx: 0x15fb7f
-    ebx: 0x1001000
-    esp: 0x75e47e08
-    ebp: 0x75e47e6c
-    esi: 0x1002000
-    edi: 0x8048000
-    eip: 0x106c93
-    efl: 0x10206
-
-    <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:
-
-    cs: 0x8
-    ds: 0x10
-    es: 0x10
-    fs: 0
-    gs: 0
-    ss: 0x10
-    eax: 0x106c95
-    ecx: 0x6aab096c
-    edx: 0x106cec
-    ebx: 0x75e47f04
-    esp: 0x75e47f0c
-    ebp: 0x75e47fac
-    esi: 0x75e47f8c
-    edi: 0x7fffff3c
-    eip: 0x1068bd
-    efl: 0x10216
-
-    <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
-
-
-# Slow SCSI probing
-
-[[!tag open_issue_gnumach]]
-
-
-## IRC, freenode, #hurd, 2012-08-07
-
-    <braunr> youpi: it seems the slow boot on virtualbox is really because of
-      scsi (it spends a long time in scsi_init, probing for all the drivers)
-    <youpi> braunr: we know that
-    <youpi> isn't it in the io port probe printed at boot?
-    <youpi> iirc that was that
-    <braunr> the discussion i found was about eata
-    <braunr> not the whole scsi group
-    <youpi> there used to be another in eata, yas
-    <braunr> oh
-    <braunr> i must have missed the first discussion then
-    <youpi> I mean
-    <youpi> the eata is the first
-    <braunr> ok
-    <youpi> and scsi was mentioned later
-    <youpi> just nobody took the time to track it down
-    <braunr> ok
-    <braunr> so it's not just a matter of disabling a single driver :(
-    <youpi> braunr: I still believe it's a matter of disableing a single driver
-    <youpi> I don't see why scsi in general should take a lot of time
-    <braunr> youpi: it doesn't on qemu, it may simply be virtualbox's fault
-    <youpi> it is, yes
-    <youpi> and virtualbox people say it's hurd's fault, of course
-    <braunr> both are possible
-    <braunr> but we can't expect them to fix it :)
-    <youpi> that's what I mean