From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 207489] Kernel panic due to Lazy update IOAPIC EOI on an x86_64 *host*, when two (or more) PCI devices from different IOMMU groups are passed to Windows 10 guest, upon guest boot into Windows, with more than 4 VCPUs
Date: Sat, 02 May 2020 09:22:38 +0000 [thread overview]
Message-ID: <bug-207489-28872-KhLDbeivzc@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-207489-28872@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=207489
--- Comment #9 from Suravee Suthikulpanit (suravee.suthikulpanit@amd.com) ---
There is a spin_lock() around the call to ioapic_set_irq(), which should be
safe. Although, I like your suggestion of using atomic_cmpxchg(). I'll use that
for the upstream patch.
Thanks,
Suravee
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next prev parent reply other threads:[~2020-05-02 9:22 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-28 20:55 [Bug 207489] New: Kernel panic due to Lazy update IOAPIC EOI on an x86_64 *host*, when two (or more) PCI devices from different IOMMU groups are passed to Windows 10 guest, upon guest boot into Windows, with more than 4 VCPUs bugzilla-daemon
2020-04-28 21:00 ` [Bug 207489] " bugzilla-daemon
2020-04-28 21:01 ` bugzilla-daemon
2020-04-28 21:02 ` bugzilla-daemon
2020-04-28 21:02 ` bugzilla-daemon
2020-04-28 21:02 ` bugzilla-daemon
2020-04-28 21:03 ` bugzilla-daemon
2020-04-30 17:18 ` bugzilla-daemon
2020-04-30 18:10 ` bugzilla-daemon
2020-05-01 18:23 ` bugzilla-daemon
2020-05-02 9:22 ` bugzilla-daemon [this message]
2020-05-03 7:27 ` bugzilla-daemon
2020-05-04 10:10 ` bugzilla-daemon
2020-05-06 13:44 ` bugzilla-daemon
2020-05-06 14:02 ` bugzilla-daemon
2020-05-06 14:14 ` bugzilla-daemon
2020-05-12 15:20 ` bugzilla-daemon
2020-07-21 7:24 ` bugzilla-daemon
2020-08-22 14:33 ` bugzilla-daemon
2020-08-22 14:34 ` bugzilla-daemon
2021-02-03 16:16 ` bugzilla-daemon
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