https://bugs.dragonflybsd.org/https://bugs.dragonflybsd.org/favicon.ico?16293952082014-05-25T14:24:36ZDragonFlyBSD bugtrackerDragonFlyBSD - Bug #2013: oversized DMA request loophttps://bugs.dragonflybsd.org/issues/2013?journal_id=119632014-05-25T14:24:36Zzcrownover
<ul><li><strong>Description</strong> updated (<a title="View differences" href="/journals/11963/diff?detail_id=1663">diff</a>)</li><li><strong>Category</strong> set to <i>Kernel</i></li><li><strong>Target version</strong> set to <i>3.6.1</i></li></ul><p>I'm running 3.6.2 and seeing the same error, although the size of the message is a little smaller, it's causing HAMMER to peg the CPU while it handles 609 additions of that to the kernel messages per second.</p> DragonFlyBSD - Bug #2013: oversized DMA request loophttps://bugs.dragonflybsd.org/issues/2013?journal_id=119642014-05-26T18:05:34Zzcrownover
<ul></ul><p>I had this error in a Virtual Box VM that had a corrupted ISO attached to it, when I removed the ISO, the error stopped entirely. If this matches your scenario, let me know so we can close this out.</p> DragonFlyBSD - Bug #2013: oversized DMA request loophttps://bugs.dragonflybsd.org/issues/2013?journal_id=119862014-06-01T00:06:28Zzcrownover
<ul><li><strong>Target version</strong> changed from <i>3.6.1</i> to <i>3.8</i></li></ul><p>Running 3.8.0rc and this error is occuring with no disk in and flooding syslog still.</p>
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<p>sudo tail -n 20 /var/log/messages</p>
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<p>Password:<br />May 31 17:03:39 zach-dfly kernel: ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536<br />May 31 17:03:39 zach-dfly kernel: acd0: setting up DMA failed<br />May 31 17:03:40 zach-dfly last message repeated 2114 times<br />May 31 17:03:40 zach-dfly kernel: ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536<br />May 31 17:03:40 zach-dfly kernel: acd0: setting up DMA failed<br />May 31 17:03:41 zach-dfly last message repeated 2114 times<br />May 31 17:03:41 zach-dfly kernel: ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536<br />May 31 17:03:41 zach-dfly kernel: acd0: setting up DMA failed<br />May 31 17:03:42 zach-dfly last message repeated 2120 times<br />May 31 17:03:42 zach-dfly kernel: ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536<br />May 31 17:03:42 zach-dfly kernel: acd0: setting up DMA failed<br />May 31 17:03:43 zach-dfly last message repeated 2108 times<br />May 31 17:03:43 zach-dfly kernel: ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536<br />May 31 17:03:43 zach-dfly kernel: acd0: setting up DMA failed<br />May 31 17:03:44 zach-dfly last message repeated 1723 times<br />May 31 17:03:44 zach-dfly kernel: ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536<br />May 31 17:03:44 zach-dfly kernel: acd0: setting up DMA failed<br />May 31 17:03:45 zach-dfly last message repeated 1902 times<br />May 31 17:03:45 zach-dfly kernel: ata1: FAILURE - oversized DMA transfer attempt 69632 > 65536<br />May 31 17:03:45 zach-dfly kernel: acd0: setting up DMA failed</p>
<blockquote>
</blockquote>
<p>I'm about to upgrade this system to 3.8.0rc2, though I don't think any of the changes made from rc1 to rc2 would affect this. For reference, although Virtualbox claims are often dismissive as I don't know if this is due to Virtualbox or not and don't have this issue on other instances and most of my other instances are on Virtualbox as well. My Virtualbox version with this instance is 4.3.12 r93733</p> DragonFlyBSD - Bug #2013: oversized DMA request loophttps://bugs.dragonflybsd.org/issues/2013?journal_id=119892014-06-01T13:09:47Zswildner
<ul><li><strong>Assignee</strong> deleted (<del><i>0</i></del>)</li></ul><p>Does it help if you set hw.ata.atapi_dma=0 in /boot/loader.conf?</p> DragonFlyBSD - Bug #2013: oversized DMA request loophttps://bugs.dragonflybsd.org/issues/2013?journal_id=119922014-06-01T16:47:52Zzcrownover
<ul><li><strong>% Done</strong> changed from <i>0</i> to <i>100</i></li></ul><p>Setting that seems to have silenced the messages dumped to the kernel and also caused the system to be stable.</p> DragonFlyBSD - Bug #2013: oversized DMA request loophttps://bugs.dragonflybsd.org/issues/2013?journal_id=124202015-01-14T23:48:07Ztuxillo
<ul><li><strong>Status</strong> changed from <i>New</i> to <i>In Progress</i></li><li><strong>Target version</strong> changed from <i>3.8</i> to <i>4.2</i></li><li><strong>% Done</strong> changed from <i>100</i> to <i>50</i></li></ul><p>Hi,</p>
<p>Disabling DMA isn't a solution I would say.</p>
<p>Cheers,<br />Antonio Huete</p> DragonFlyBSD - Bug #2013: oversized DMA request loophttps://bugs.dragonflybsd.org/issues/2013?journal_id=140452021-05-11T11:06:08Ztuxillo
<ul><li><strong>Target version</strong> changed from <i>4.2</i> to <i>6.0</i></li></ul>