From: PGNet Dev <pgnet.dev@gmail.com>
To: Andrew Cooper <andrew.cooper3@citrix.com>,
xen-devel@lists.xenproject.org
Subject: Re: [Xen-devel] xen 4.13 + kernel 5.4.11 'APIC Error ... FATAL PAGE FAULT' on reboot? non-Xen reboot's ok.
Date: Wed, 15 Jan 2020 09:19:08 -0800 [thread overview]
Message-ID: <74cc009f-2d9d-c466-6735-096a47fca7e8@gmail.com> (raw)
In-Reply-To: <19d37ca0-90be-4820-e937-796288fc4517@citrix.com>
hi
On 1/15/20 9:10 AM, Andrew Cooper wrote:
>> Is this a known/fixable issue?
>
> The APIC errors aren't fatal. They need looking into and addressing in
> due course.
>
> The real crash is EFI firmware falling over a NULL pointer which is
> wildly known issue. Fixing it requires following the Linux approach
> which is to not use EFI reboot unless absolutely necessary.
>
> You can work around it with reboot=a on the command line, but actually
> fixing this in Xen is probably never going to happen because I've lost
> interest in trying to arguing that default behaviour like the above is a
> bad thing which we should code around.
currently, here,
cat /proc/cmdline
root=/dev/mapper/VG0-ROOT softlevel=xen rd.shell mds=full l1tf=flush rd.debug=0 rd.udev.log_priority=debug rd.auto=1 dolvm lvmwait=/dev/mapper/VG0-ROOT root=/dev/mapper/VG0-ROOT rootfstype=ext4 rootflags=journal_checksum noresume nomodeset nouveau.modeset=1 video=vesa:off video=efifb:1024x768 xencons=xvc console=tty0 console=hvc0 pcie_aspm=off mce=off fsck.mode=skip fsck.repair=preen reboot=acpi clocksource=xen intel_iommu=on apparmor=0 plymouth.enable=0 scsi_mod.use_blk_mq=1 elevator=mq-deadline cpuidle cpufreq=xen:ondemand net.ifnames=1 biosdevname=0 showopts noquiet log_buf_len=10M print_fatal_signals=1 systemd.log_level=info systemd.log_target=kmsg earlyprintk=xen,keep audit=0
note the
reboot=acpi
already there.
something else I'm missing, perhaps?
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next prev parent reply other threads:[~2020-01-15 17:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-15 16:52 [Xen-devel] xen 4.13 + kernel 5.4.11 'APIC Error ... FATAL PAGE FAULT' on reboot? non-Xen reboot's ok PGNet Dev
2020-01-15 17:10 ` Andrew Cooper
2020-01-15 17:19 ` PGNet Dev [this message]
2020-01-15 17:21 ` Andrew Cooper
2020-01-15 17:43 ` PGNet Dev
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