linux-kernel - Re: Boot stall regression from "printk for 5.19" merge

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20220620112936.48fcb2a4@thinkpad>
Date:   Mon, 20 Jun 2022 11:29:36 +0200
From:   Marek Behún <kabel@...nel.org>
To:     John Ogness <john.ogness@...utronix.de>
Cc:     Petr Mladek <pmladek@...e.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Jan Kara <jack@...e.cz>, Peter Zijlstra <peterz@...radead.org>
Subject: Re: Boot stall regression from "printk for 5.19" merge

On Mon, 20 Jun 2022 00:29:16 +0206
John Ogness <john.ogness@...utronix.de> wrote:

> Hi Marek,
> 
> On 2022-06-19, Marek Behún <kabel@...nel.org> wrote:
> > the series
> > https://lore.kernel.org/linux-kernel/YouKQw72H7y9EJQK@alley/
> > merged by commit 537e62c865dc ("Merge tag 'printk-for-5.19' of
> > git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux")
> >
> > and in particular the commit 09c5ba0aa2fc ("printk: add kthread console
> > printers")
> >
> > causes a regression on arm64 (Marvell CN9130-CRB board) where the
> > system boot freezes in most cases (and is unusable until restarted by
> > watchdog), or, in some cases boots, but the console output gets mangled
> > for a while (the serial console spits garbage characters).  
> 
> Could you provide your kernel config and a complete kernel boot log (at
> least as much as you get)? I would like to investigate the serial
> driver. What you are describing sounds more like a serial bug. The
> kthread console series has already uncovered serial driver bugs in
> multiple drivers.
> 
> Thanks for reporting this.
> 
> John Ogness

Hi John,

attaching bootlogs and config.

Marek

Download attachment ".config" of type "application/octet-stream" (160483 bytes)

View attachment "bootlog_ok.txt" of type "text/plain" (25940 bytes)

View attachment "bootlog_stall_1.txt" of type "text/plain" (10992 bytes)

View attachment "bootlog_stall_2.txt" of type "text/plain" (11232 bytes)

View attachment "bootlog_stall_3.txt" of type "text/plain" (11227 bytes)