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: Fri, 24 Nov 2023 15:40:29 +0000 [thread overview]
Message-ID: <bug-215740-208809-0FcuADHcye@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 #25 from Andy Shevchenko (andy.shevchenko@gmail.com) ---
I'm not sure I understand 'u8 (*buffer)[8]' in the data struct, sounds like 8
pointers, so the side has to be 32/64 bytes. As for the next field, status,
it's a pointer and again 4/8 bytes. I believe we are talking about x86_64 case,
so I fail to see how 1 and 4 map to the struct usb_hub fields. Is the len in
your debug patches is in "long"s units? Then it makes sense if the status is
mapped first (1 long) followed by 4 (out of 8) URB buffer pointers.
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next prev parent reply other threads:[~2023-11-24 15:40 UTC|newest]
Thread overview: 57+ 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
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2023-11-24 15:40 ` bugzilla-daemon [this message]
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