Date: Fri, 03 Oct 2025 12:36:43 +0000 From: bugzilla-noreply@freebsd.org To: riscv@FreeBSD.org Subject: [Bug 289978] uart speed appears broken Message-ID: <bug-289978-40250@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289978 Bug ID: 289978 Summary: uart speed appears broken Product: Base System Version: 16.0-CURRENT Hardware: riscv OS: Any Status: New Severity: Affects Only Me Priority: --- Component: riscv Assignee: riscv@FreeBSD.org Reporter: rdunkle@smallcatbrain.com This sbc is StarfiveVF2 1.3b. uname -a 16.0-CURRENT FreeBSD 16.0-CURRENT #0 main-n280609-b0091036f724: Sat Sep 27 09:47:04 EEST 2025 /usr/obj/usr/src/riscv.riscv64/sys/GENERIC-NODEBUG riscv The uart used to work OK with FreeBSD 15-CURRENT july 2025. with FreeBSD 16, when the system shifts from u-boot to boot FreeBSD the uart starts to double characters, then finally jibberish (as if speed is wrong). ttyu0 used to work after boot. FreeBSD 16 does not work -- jibberish. dmesg appears normal: <root@riscv>:~# dmesg | grep uart GDB: debug ports: uart GDB: current port: uart uart0: <16550 or compatible> mem 0x10000000-0x1000ffff irq 28 on simplebus0 uart0: console (115200,n,8,1) -- You are receiving this mail because: You are the assignee for the bug.home | help
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