From: bugzilla-daemon@kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 215740] kernel warning: DMA-API: xhci_hcd: cacheline tracking EEXIST, overlapping mappings aren't supported
Date: Sat, 25 Nov 2023 21:17:07 +0000 [thread overview]
Message-ID: <bug-215740-208809-6jElx1HqD4@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-215740-208809@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=215740
--- Comment #33 from Alan Stern (stern@rowland.harvard.edu) ---
It should not be necessary to use dma_kmalloc_size_aligned(). These
allocations don't need any special alignment; they just need to be in different
cache lines on some architectures. Isn't this what ARCH_DMA_MINALIGN and
ARCH_KMALLOC_MINALIGN are supposed to take care of (see include/linux/slab.h)?
I'll try doing a little more testing to find out why the issue does not show up
on my computer.
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next prev parent reply other threads:[~2023-11-25 21:17 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-24 15:18 [Bug 215740] New: kernel warning: DMA-API: xhci_hcd: cacheline tracking EEXIST, overlapping mappings aren't supported bugzilla-daemon
2022-03-31 6:52 ` [Bug 215740] " bugzilla-daemon
2022-03-31 6:54 ` bugzilla-daemon
2022-03-31 7:41 ` [Bug 215740] New: " Thorsten Leemhuis
2022-04-05 5:19 ` Christoph Hellwig
2022-04-11 10:21 ` [Bug 215740] New: kernel warning: DMA-API: xhci_hcd: cacheline tracking EEXIST, overlapping mappings aren't supported #forregzbot Thorsten Leemhuis
2022-03-31 7:41 ` [Bug 215740] kernel warning: DMA-API: xhci_hcd: cacheline tracking EEXIST, overlapping mappings aren't supported bugzilla-daemon
2022-03-31 7:54 ` bugzilla-daemon
2022-04-05 5:19 ` bugzilla-daemon
2022-05-04 8:10 ` bugzilla-daemon
2022-05-04 10:17 ` bugzilla-daemon
2023-10-10 20:19 ` bugzilla-daemon
2023-11-12 20:46 ` bugzilla-daemon
2023-11-13 22:11 ` bugzilla-daemon
2023-11-14 3:25 ` bugzilla-daemon
2023-11-15 20:24 ` bugzilla-daemon
2023-11-16 2:19 ` bugzilla-daemon
2023-11-17 22:13 ` bugzilla-daemon
2023-11-19 16:47 ` bugzilla-daemon
2023-11-19 21:12 ` bugzilla-daemon
2023-11-20 19:43 ` bugzilla-daemon
2023-11-21 19:31 ` bugzilla-daemon
2023-11-21 20:51 ` bugzilla-daemon
2023-11-23 21:27 ` bugzilla-daemon
2023-11-24 12:02 ` bugzilla-daemon
2023-11-24 12:07 ` bugzilla-daemon
2023-11-24 15:27 ` bugzilla-daemon
2023-11-24 15:30 ` bugzilla-daemon
2023-11-24 15:40 ` bugzilla-daemon
2023-11-24 15:50 ` bugzilla-daemon
2023-11-24 16:09 ` bugzilla-daemon
2023-11-24 16:21 ` bugzilla-daemon
2023-11-24 21:05 ` bugzilla-daemon
2023-11-24 22:22 ` bugzilla-daemon
2023-11-25 2:03 ` bugzilla-daemon
2023-11-25 20:50 ` bugzilla-daemon
2023-11-25 21:17 ` bugzilla-daemon [this message]
2023-11-25 22:15 ` bugzilla-daemon
2023-11-28 19:04 ` bugzilla-daemon
2023-11-28 21:28 ` bugzilla-daemon
2023-11-29 15:44 ` bugzilla-daemon
2023-11-30 19:35 ` bugzilla-daemon
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