From: Fredrik Noring <noring@nocrew.org>
To: "Maciej W. Rozycki" <macro@mips.com>
Cc: "Jürgen Urban" <JuergenUrban@gmx.de>, linux-mips@linux-mips.org
Subject: Re: [RFC v2] MIPS: R5900: Workaround exception NOP execution bug (FLX05)
Date: Thu, 22 Feb 2018 18:27:10 +0100 [thread overview]
Message-ID: <20180222172709.GB2310@localhost.localdomain> (raw)
In-Reply-To: <alpine.DEB.2.00.1802201410300.3553@tp.orcam.me.uk>
Hi Maciej,
> Do you use the netconsole then too? Using a USB serial port adapter
> would be an alternative, although not a very powerful one either, because
> you need to have many parts of the OS initialised before you can get to
> such a port.
No, I haven't used netconsole, but I do have a frame buffer. There have been
a few very early kernel crashes during the porting from v2.6 to v4.15. All
of them could be identified to a single commit by bisection, and then it was
easy to find a solution to proceed, fortunately.
Eventually I'd like to get kexec working. I suspect it could be somewhat
tricky to debug though.
Fredrik
next prev parent reply other threads:[~2018-02-22 17:27 UTC|newest]
Thread overview: 117+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-27 13:23 [PATCH] MIPS: Add basic R5900 support Fredrik Noring
2017-08-28 13:53 ` Ralf Baechle
2017-08-28 17:11 ` Maciej W. Rozycki
2017-08-29 17:33 ` Fredrik Noring
2017-08-29 17:24 ` Maciej W. Rozycki
2017-08-29 17:24 ` Maciej W. Rozycki
2017-08-30 13:23 ` Fredrik Noring
2017-08-31 15:11 ` Maciej W. Rozycki
2017-08-31 15:11 ` Maciej W. Rozycki
2017-09-02 10:28 ` Fredrik Noring
2017-09-09 10:13 ` Maciej W. Rozycki
2017-09-09 10:13 ` Maciej W. Rozycki
2017-09-11 5:21 ` Maciej W. Rozycki
2017-09-11 5:21 ` Maciej W. Rozycki
2017-09-12 17:59 ` Fredrik Noring
2017-09-15 11:12 ` Maciej W. Rozycki
2017-09-15 11:12 ` Maciej W. Rozycki
2017-09-15 13:19 ` Fredrik Noring
2017-09-15 18:28 ` Maciej W. Rozycki
2017-09-15 18:28 ` Maciej W. Rozycki
2017-09-02 14:10 ` [PATCH v2] " Fredrik Noring
2017-09-11 5:18 ` Maciej W. Rozycki
2017-09-11 5:18 ` Maciej W. Rozycki
2017-09-11 15:17 ` Fredrik Noring
2017-09-14 13:50 ` Maciej W. Rozycki
2017-09-14 13:50 ` Maciej W. Rozycki
2017-09-16 13:34 ` Fredrik Noring
2017-09-18 17:05 ` Maciej W. Rozycki
2017-09-18 17:05 ` Maciej W. Rozycki
2017-09-18 19:24 ` Fredrik Noring
2017-09-19 12:44 ` Maciej W. Rozycki
2017-09-19 12:44 ` Maciej W. Rozycki
2017-09-20 14:54 ` Fredrik Noring
2017-09-26 11:50 ` Maciej W. Rozycki
2017-09-26 11:50 ` Maciej W. Rozycki
2017-09-27 17:21 ` Fredrik Noring
2017-09-28 12:13 ` Maciej W. Rozycki
2017-09-28 12:13 ` Maciej W. Rozycki
2017-09-30 6:56 ` Fredrik Noring
2017-10-02 9:05 ` Maciej W. Rozycki
2017-10-02 9:05 ` Maciej W. Rozycki
2017-10-02 16:33 ` Fredrik Noring
2017-10-29 17:20 ` Fredrik Noring
2017-11-10 23:34 ` Maciej W. Rozycki
2017-11-10 23:34 ` Maciej W. Rozycki
2017-11-11 16:04 ` Fredrik Noring
2018-01-29 20:27 ` Fredrik Noring
2018-01-31 23:01 ` Maciej W. Rozycki
2018-02-11 7:29 ` [RFC] MIPS: R5900: Workaround for the short loop bug Fredrik Noring
2018-02-12 9:25 ` Maciej W. Rozycki
2018-02-12 15:22 ` Fredrik Noring
2018-02-11 7:46 ` [RFC] MIPS: R5900: Use SYNC.L for data cache and SYNC.P for instruction cache Fredrik Noring
2018-02-11 7:56 ` [RFC] MIPS: R5900: Workaround exception NOP execution bug (FLX05) Fredrik Noring
2018-02-12 9:28 ` Maciej W. Rozycki
2018-02-15 19:15 ` [RFC v2] " Fredrik Noring
2018-02-15 20:49 ` Maciej W. Rozycki
2018-02-17 11:16 ` Fredrik Noring
2018-02-17 11:57 ` Maciej W. Rozycki
2018-02-17 13:38 ` Fredrik Noring
2018-02-17 15:03 ` Maciej W. Rozycki
2018-02-17 20:04 ` Fredrik Noring
2018-02-20 14:09 ` Maciej W. Rozycki
2018-02-22 17:04 ` Fredrik Noring
2018-02-18 8:47 ` Fredrik Noring
2018-02-20 14:41 ` Maciej W. Rozycki
2018-02-22 17:27 ` Fredrik Noring [this message]
2018-02-11 8:01 ` [RFC] MIPS: R5900: Workaround for CACHE instruction near branch delay slot Fredrik Noring
2018-02-11 11:16 ` Aw: " "Jürgen Urban"
2018-02-11 8:09 ` [RFC] MIPS: R5900: The ERET instruction has issues with delay slot and CACHE Fredrik Noring
2018-02-11 11:07 ` Aw: " "Jürgen Urban"
2018-02-11 8:29 ` [RFC] MIPS: R5900: Use mandatory SYNC.L in exception handlers Fredrik Noring
2018-02-11 10:33 ` Aw: " "Jürgen Urban"
2018-02-12 9:22 ` Maciej W. Rozycki
2018-02-12 9:22 ` Maciej W. Rozycki
2018-02-18 10:30 ` Fredrik Noring
2018-02-17 14:43 ` [RFC] MIPS: R5900: Workaround for saving and restoring FPU registers Fredrik Noring
2018-02-17 15:18 ` Maciej W. Rozycki
2018-02-17 17:47 ` Fredrik Noring
2018-02-17 19:33 ` Maciej W. Rozycki
2018-02-18 9:26 ` [RFC] MIPS: R5900: Workaround where MSB must be 0 for the instruction cache Fredrik Noring
2018-02-18 11:08 ` [RFC] MIPS: R5900: Add mandatory SYNC.P to all M[FT]C0 instructions Fredrik Noring
2018-03-03 12:26 ` [RFC] MIPS: PS2: Interrupt request (IRQ) support Fredrik Noring
2018-03-03 13:09 ` Maciej W. Rozycki
2018-03-03 14:14 ` Fredrik Noring
2018-04-09 15:51 ` Fredrik Noring
2018-03-18 10:45 ` Fredrik Noring
2018-03-19 19:15 ` Thomas Gleixner
2018-06-18 18:52 ` [RFC v2] " Fredrik Noring
2017-10-30 17:55 ` [PATCH v2] MIPS: Add basic R5900 support Fredrik Noring
2017-11-24 10:26 ` Maciej W. Rozycki
2017-11-24 10:26 ` Maciej W. Rozycki
2017-11-24 10:39 ` Maciej W. Rozycki
2017-11-24 10:39 ` Maciej W. Rozycki
2017-09-20 14:07 ` Fredrik Noring
2017-09-21 21:07 ` Maciej W. Rozycki
2017-09-21 21:07 ` Maciej W. Rozycki
2017-09-22 16:37 ` Fredrik Noring
2017-09-22 16:37 ` Fredrik Noring
2017-09-29 23:55 ` Maciej W. Rozycki
2017-09-29 23:55 ` Maciej W. Rozycki
2017-09-30 18:26 ` Fredrik Noring
2017-10-02 9:11 ` Maciej W. Rozycki
2017-10-02 9:11 ` Maciej W. Rozycki
2017-10-03 19:49 ` Fredrik Noring
2017-10-05 19:04 ` Fredrik Noring
2017-10-06 20:28 ` Fredrik Noring
2017-10-15 16:39 ` Fredrik Noring
2017-10-17 12:23 ` Maciej W. Rozycki
2017-10-17 12:23 ` Maciej W. Rozycki
2017-10-21 18:00 ` Fredrik Noring
2017-10-23 16:10 ` Maciej W. Rozycki
2017-10-23 16:10 ` Maciej W. Rozycki
2017-09-21 18:11 ` Paul Burton
2017-09-21 18:11 ` Paul Burton
2017-09-21 19:48 ` Maciej W. Rozycki
2017-09-21 19:48 ` Maciej W. Rozycki
2017-10-29 18:42 ` Fredrik Noring
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