From: Jurgen Lambrecht <J.Lambrecht@TELEVIC•com>
To: "linux-arm-kernel@lists•infradead.org"
<linux-arm-kernel@lists•infradead.org>
Cc: "linux-imx@nxp•com" <linux-imx@nxp•com>
Subject: FYI: imx-sdma firmware is not compatible with SLUB slab allocator
Date: Tue, 27 Aug 2019 13:35:09 +0000 [thread overview]
Message-ID: <1e2fe2dc-f5ea-db73-59cf-c61ec558131a@televic.com> (raw)
Hi,
We are updating our kernel on our custom board with an iMX6UL from 3.14
to 4.19, and when loading linux-firmware/imx/sdma/sdma-imx6q.bin v3.5
the kernel hangs when booting, only "Starting kernel ..." is printed (by
uBoot I think).
When I remove the sdma bin (built-in the kernel via EXTRA_FIRMWARE),
then it boots.
I found that the slab allocator (menu config -> General setup -> Choose
SLAB allocator) is the culprit: when using imx_v6_v7_defconfig the
kernel boots, but not with our config (based on a tiny config I think).
And the config that makes the difference is the slab allocator: with
SLUB or SLAB the kernel (with sdma bin) boots, but not with SLOB.
I don't know how to force selecting SLUB in Kconfig when selecting
IMX_SDMA, but anyhow first this issue must be confirmed on other
processors from the iMX family.
Kind Regards,
Jürgen Lambrecht
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next reply other threads:[~2019-08-27 13:35 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-27 13:35 Jurgen Lambrecht [this message]
2019-08-27 15:04 ` FYI: imx-sdma firmware is not compatible with SLUB slab allocator Leonard Crestez
2019-08-28 9:26 ` Jurgen Lambrecht
2019-08-28 14:05 ` Robin Gong
2019-08-29 6:23 ` Jurgen Lambrecht
2019-09-03 5:57 ` Robin Gong
2019-09-03 14:32 ` Jurgen Lambrecht
2019-09-03 14:48 ` Leonard Crestez
2019-09-04 14:26 ` Jurgen Lambrecht
2019-09-12 6:33 ` Uwe Kleine-König
2019-09-12 2:06 ` Robin Gong
2019-09-12 9:45 ` Jurgen Lambrecht
2019-09-12 12:12 ` Jurgen Lambrecht
2019-09-12 14:19 ` Robin Gong
2019-09-12 14:40 ` Russell King - ARM Linux admin
2019-09-12 14:47 ` Robin Gong
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