From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Linux MMC List <linux-mmc@vger.kernel.org>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: Re: [PATCH] mmc: renesas_sdhi: sys_dmac: abort DMA synced to avoid timeouts
Date: Tue, 22 Jun 2021 09:47:36 +0200 [thread overview]
Message-ID: <YNGVmDOzFzA9MMZU@shikoro> (raw)
In-Reply-To: <CAMuHMdULBPfd97xqDaFOTmj-B2pBA=wSKz3iep6ujx47j1zyPg@mail.gmail.com>
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While the patch does not fix the timeout issue (also verified using an
Alt board), it does fix this follow-up issue here:
[ 191.485194] ------------[ cut here ]------------
[ 191.490296] WARNING: CPU: 0 PID: 698 at kernel/dma/debug.c:498 add_dma_entry+0x158/0x180
[ 191.499397] DMA-API: exceeded 7 overlapping mappings of cacheline 0x0117cc3a
So, I think we want this patch nonetheless but I need to rephrase the
commit message.
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prev parent reply other threads:[~2021-06-22 7:47 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 7:00 [PATCH] mmc: renesas_sdhi: sys_dmac: abort DMA synced to avoid timeouts Wolfram Sang
2021-06-21 9:43 ` Niklas Söderlund
2021-06-21 9:53 ` Geert Uytterhoeven
2021-06-21 10:52 ` Wolfram Sang
2021-06-22 7:47 ` Wolfram Sang [this message]
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