From: DIXLOR <dixlor@gmail.com>
To: linux-rt-users <linux-rt-users@vger.kernel.org>
Subject: WARNING: amd_iommu. linux-4.4.1-rt6
Date: Tue, 23 Feb 2016 03:34:37 +0300 [thread overview]
Message-ID: <56CBA91D.6080909@gmail.com> (raw)
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[ 1.828887] iommu: Adding device 0000:00:14.5 to group 10
[ 1.831805] ------------[ cut here ]------------
[ 1.831814] WARNING: CPU: 0 PID: 1 at drivers/iommu/amd_iommu.c:1958
0xffffffff812d6449()
[ 1.831817] Modules linked in:
[ 1.831827] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.4.1-rt6+ #5
[ 1.831831] Hardware name: empty empty/S8225, BIOS 'V3.03 ' 11/01/2012
[ 1.831835] ffffffff815fd5cc ffffffff81224d47 0000000000000000 ffffffff81034e17
[ 1.831847] ffff8804231a5a00 ffff880422bb8420 ffff88042310e898 ffff880423934000
[ 1.831858] ffff880422bb8400 ffffffff812d6449 ffff880422b5e7f8 ffff880422b5e8e8
[ 1.831868] Call Trace:
[ 1.831873] [<ffffffff81224d47>] ? 0xffffffff81224d47
[ 1.831878] [<ffffffff81034e17>] ? 0xffffffff81034e17
[ 1.831883] [<ffffffff812d6449>] ? 0xffffffff812d6449
[ 1.831889] [<ffffffff812d398c>] ? 0xffffffff812d398c
[ 1.831894] [<ffffffff812d40c2>] ? 0xffffffff812d40c2
[ 1.831899] [<ffffffff812d7313>] ? 0xffffffff812d7313
[ 1.831904] [<ffffffff812d3080>] ? 0xffffffff812d3080
[ 1.831909] [<ffffffff812d30a0>] ? 0xffffffff812d30a0
[ 1.831913] [<ffffffff8130fce7>] ? 0xffffffff8130fce7
[ 1.831918] [<ffffffff812d3bab>] ? 0xffffffff812d3bab
[ 1.831923] [<ffffffff8173b173>] ? 0xffffffff8173b173
[ 1.831928] [<ffffffff8171c2de>] ? 0xffffffff8171c2de
[ 1.831933] [<ffffffff8173b2be>] ? 0xffffffff8173b2be
[ 1.831937] [<ffffffff8173b339>] ? 0xffffffff8173b339
[ 1.831942] [<ffffffff8171c2ec>] ? 0xffffffff8171c2ec
[ 1.831946] [<ffffffff810003e2>] ? 0xffffffff810003e2
[ 1.831952] [<ffffffff81718e0d>] ? 0xffffffff81718e0d
[ 1.831956] [<ffffffff81504810>] ? 0xffffffff81504810
[ 1.831961] [<ffffffff81504815>] ? 0xffffffff81504815
[ 1.831966] [<ffffffff8150936f>] ? 0xffffffff8150936f
[ 1.831971] [<ffffffff81504810>] ? 0xffffffff81504810
[ 1.831976] ---[ end trace 0000000000000010 ]---
---
Called from amd_iommu.c, __attach_device() from attach_device()
static int __attach_device(struct iommu_dev_data *dev_data,
struct protection_domain *domain)
{
int ret;
/*
* Must be called with IRQs disabled. Warn here to detect early
* when its not.
*/
WARN_ON(!irqs_disabled());
^^^^^^^^^^^^^^^^^^^^^^^^^^ WARNING
...
}
static int attach_device(struct device *dev,
struct protection_domain *domain)
{
...
}
write_lock_irqsave(&amd_iommu_devtable_lock, flags);
ret = __attach_device(dev_data, domain);
write_unlock_irqrestore(&amd_iommu_devtable_lock, flags);
...
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next reply other threads:[~2016-02-23 0:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 0:34 DIXLOR [this message]
2016-02-25 8:44 ` WARNING: amd_iommu. linux-4.4.1-rt6 Sebastian Andrzej Siewior
2016-02-27 9:25 ` Thomas Gleixner
2016-02-27 9:58 ` Thomas Gleixner
2016-02-27 11:38 ` DIXLOR
-- strict thread matches above, loose matches on Subject: below --
2016-02-23 0:25 DIXLOR
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