From: Joerg Roedel <joro@8bytes.org>
To: Guillaume Tucker <guillaume.tucker@collabora.com>
Cc: Joerg Roedel <jroedel@suse.de>,
Marek Szyprowski <m.szyprowski@samsung.com>,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
linux-next@vger.kernel.org
Subject: Re: next/master bisection: baseline.login on jetson-tk1
Date: Thu, 14 May 2020 13:23:17 +0200 [thread overview]
Message-ID: <20200514112317.GH18353@8bytes.org> (raw)
In-Reply-To: <c9745450-a6d0-1944-a9af-ef9ce18fed12@collabora.com>
On Wed, May 13, 2020 at 11:16:14PM +0100, Guillaume Tucker wrote:
> which this time gave me:
>
> <4>[ 2.540558] PC is at iommu_probe_device+0x1c/0x15c
> <4>[ 2.545606] LR is at of_iommu_configure+0x15c/0x1c4
> <4>[ 2.550736] pc : [<c092e0e4>] lr : [<c0932c0c>] psr: a0000013
>
> which in turn brings us to:
>
> (gdb) l *0xc092e0e4
> 0xc092e0e4 is in iommu_probe_device (drivers/iommu/iommu.c:232).
> 227 int ret;
> 228
> 229 if (!dev_iommu_get(dev))
> 230 return -ENOMEM;
> 231
> 232 if (!try_module_get(ops->owner)) {
> 233 ret = -EINVAL;
> 234 goto err_out;
> 235 }
> 236
Okay, so ops is NULL. I queued a fix for that in the iommu-tree. If you
test the latest master branch the problem should be gone.
Thanks for the report,
Joerg
prev parent reply other threads:[~2020-05-14 11:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5eb9fab4.1c69fb81.a1f1c.0e95@mx.google.com>
2020-05-12 6:05 ` next/master bisection: baseline.login on jetson-tk1 Guillaume Tucker
2020-05-12 15:16 ` Joerg Roedel
2020-05-13 22:16 ` Guillaume Tucker
2020-05-14 11:23 ` Joerg Roedel [this message]
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