Date: Fri, 10 Apr 2026 12:10:19 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 293382] Dead lock and kernel crash around closefp_impl Message-ID: <bug-293382-227-jMtFPW2N6J@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-293382-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=293382 --- Comment #55 from Konstantin Belousov <kib@FreeBSD.org> --- (In reply to Kyle Evans from comment #54) Note that rep;movs and like are very special kind of instructions in x86 ISA. They are interruptible, and CPU must update %rsi%rdi/%rcx to reflect the progress. Of course for short moves interrupts are kept pending, but for large they are not, and I believe that the case of the reporter which copies hundreds of KBs, if not some MBs, should be. That said, could you share some details about the case, and how it was solved? Did the microcode update resolved it? I lost access to AMD internal docs some time ago. -- You are receiving this mail because: You are the assignee for the bug.home | help
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