From: Peter Zijlstra <peterz@infradead.org>
To: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>, Borislav Petkov <bp@alien8.de>,
j-nomura@ce.jp.nec.com, kasong@redhat.com,
fanc.fnst@cn.fujitsu.com, x86@kernel.org,
kexec@lists.infradead.org, linux-kernel@vger.kernel.org,
hpa@zytor.com, tglx@linutronix.de
Subject: Re: [PATCH v6 1/2] x86/kexec: Build identity mapping for EFI systab and ACPI tables
Date: Tue, 14 May 2019 13:38:26 +0200 [thread overview]
Message-ID: <20190514113826.GM2589@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190514084841.GA27876@dhcp-128-65.nay.redhat.com>
On Tue, May 14, 2019 at 04:48:41PM +0800, Dave Young wrote:
> > I did some tests on the laptop, thing is:
> > 1. apply the 3 patches (two you posted + Boris's revert commit 52b922c3d49c)
> > on latest Linus master branch, everything works fine.
> >
> > 2. build and test the tip/next-merge-window branch, kernel hangs early
> > without output, (both 1st boot and kexec boot)
>
> Update about 2. It should be not early rsdp related, I got the boot log
> Since can not reproduce with Linus master branch it may have been fixed.
Nothing was changed here since PTI.
> [ 0.685374][ T1] rcu: Hierarchical SRCU implementation.
> [ 0.686414][ T1] general protection fault: 0000 [#1] SMP PTI
> [ 0.687328][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.1.0-rc6+ #877
> [ 0.687328][ T1] Hardware name: LENOVO 4236NUC/4236NUC, BIOS 83ET82WW (1.52 ) 06/04/2018
> [ 0.687328][ T1] RIP: 0010:reserve_ds_buffers+0x34e/0x450
> [ 0.687328][ T1] Call Trace:
> [ 0.687328][ T1] ? hardlockup_detector_event_create+0x50/0x50
> [ 0.687328][ T1] x86_reserve_hardware+0x173/0x180
> [ 0.687328][ T1] x86_pmu_event_init+0x39/0x220
The DS buffers are special in that they're part of cpu_entrt_area. If
this comes apart it might mean your pagetables are dodgy.
next prev parent reply other threads:[~2019-05-14 11:38 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-24 9:29 [PATCH v5 0/2] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Baoquan He
2019-04-24 9:29 ` [PATCH v5 1/2] x86/kexec: Build identity mapping for EFI systab and ACPI tables Baoquan He
2019-04-27 16:11 ` Borislav Petkov
2019-04-28 5:41 ` Baoquan He
2019-04-29 12:50 ` Borislav Petkov
2019-04-29 0:23 ` [PATCH v6 " Baoquan He
2019-04-29 13:55 ` Borislav Petkov
2019-04-29 14:16 ` Baoquan He
2019-05-13 1:43 ` Baoquan He
2019-05-13 7:07 ` Borislav Petkov
2019-05-13 7:32 ` Baoquan He
2019-05-13 7:50 ` Borislav Petkov
2019-05-13 8:02 ` Baoquan He
2019-05-15 5:17 ` Junichi Nomura
2019-05-15 6:58 ` Borislav Petkov
2019-05-15 7:09 ` Junichi Nomura
2019-05-21 9:02 ` Kairui Song
2019-05-21 10:43 ` Junichi Nomura
2019-05-21 18:09 ` Borislav Petkov
2019-05-28 2:49 ` Kairui Song
2019-06-06 19:20 ` Borislav Petkov
2019-05-13 8:06 ` Baoquan He
2019-05-14 3:22 ` Dave Young
2019-05-14 3:33 ` Baoquan He
2019-05-21 21:53 ` Dirk van der Merwe
2019-05-21 23:04 ` Borislav Petkov
2019-05-14 8:48 ` Dave Young
2019-05-14 11:18 ` Kairui Song
2019-05-14 11:38 ` Peter Zijlstra [this message]
2019-05-14 12:58 ` Dave Young
2019-05-14 13:54 ` Peter Zijlstra
2019-05-14 14:09 ` Ingo Molnar
2019-05-15 1:08 ` Dave Young
2019-05-15 6:43 ` Junichi Nomura
2019-05-17 13:41 ` Borislav Petkov
2019-05-17 13:50 ` [PATCH] x86/boot: Call get_rsdp_addr() after console_init() Borislav Petkov
2019-05-21 9:28 ` Baoquan He
2019-06-06 19:22 ` [tip:x86/boot] x86/kexec: Add the EFI system tables and ACPI tables to the ident map tip-bot for Kairui Song
2019-04-24 9:29 ` [PATCH v5 2/2] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernels Baoquan He
2019-04-24 9:33 ` Baoquan He
2019-04-24 9:38 ` [PATCH v5 0/2] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel Borislav Petkov
2019-04-24 10:00 ` Baoquan He
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190514113826.GM2589@hirez.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=bhe@redhat.com \
--cc=bp@alien8.de \
--cc=dyoung@redhat.com \
--cc=fanc.fnst@cn.fujitsu.com \
--cc=hpa@zytor.com \
--cc=j-nomura@ce.jp.nec.com \
--cc=kasong@redhat.com \
--cc=kexec@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).