Date: Fri, 19 Feb 2021 16:11:00 +0000 From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 253617] ffs_sbget: panic: Unregistered use of FPU in kernel Message-ID: <bug-253617-3630-iSgJ3JVSna@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-253617-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253617 Alex Richardson <arichardson@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Closed Resolution|--- |Not A Bug --- Comment #5 from Alex Richardson <arichardson@FreeBSD.org> --- I just had a look at the QEMU TCG code for crc32 and it does not seem like it can raise anything other than #UD. Unless of course there is a bug in the decoding logic and it is treating <+126>: crc32q %rsi,%rbx as a different instruction. GDB says the raw bytes are as follows: 0xffffffff8105a4de <+126>: f2 48 0f 38 f1 de crc32q %rsi,%rbx 0xffffffff8105a4e4 <+132>: f2 48 0f 38 f1 ca crc32q %rdx,%rcx. So this does sound like it must be a QEMU bug. -- You are receiving this mail because: You are the assignee for the bug.home | help
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