Bug#991509: linux-image-amd64: marking TSC unstable due to check_tsc_sync_source failed (AMD Ryzen)
Control: tags -1 + moreinfo On Mon, Jul 26, 2021 at 02:35:55AM -0500, nelson g wrote: > Package: linux-image-amd64 > Version: 5.10.46-2 > Severity: normal > X-Debbugs-Cc: ledu...@hotmail.com > > Hello, > > My system is stuck with HPET clocksource > > dmesg | egrep -i 'tsc|hpet|clocksource' > [0.00] tsc: Fast TSC calibration using PIT > [0.00] tsc: Detected 2096.096 MHz processor > [0.004968] ACPI: HPET 0xB90A3000 38 (v01 LENOVO TP-R11 > 1210 PTEC 0002) > [0.005018] ACPI: Reserving HPET table memory at [mem > 0xb90a3000-0xb90a3037] > [0.014115] ACPI: HPET id: 0x43538210 base: 0xfed0 > [0.014183] clocksource: refined-jiffies: mask: 0x max_cycles: > 0x, max_idle_ns: 7645519600211568 ns > [0.059588] clocksource: hpet: mask: 0x max_cycles: 0x, > max_idle_ns: 133484873504 ns > [0.079620] clocksource: tsc-early: mask: 0x max_cycles: > 0x1e36c89f085, max_idle_ns: 440795235573 ns > [0.199622] TSC synchronization [CPU#0 -> CPU#1]: > [0.199622] Measured 5479288407 cycles TSC warp between CPUs, turning off > TSC clock. > [0.199622] tsc: Marking TSC unstable due to check_tsc_sync_source failed > [0.216551] clocksource: jiffies: mask: 0x max_cycles: 0x, > max_idle_ns: 764504178510 ns > [0.373390] hpet0: at MMIO 0xfed0, IRQs 2, 8, 0 > [0.373393] hpet0: 3 comparators, 32-bit 14.318180 MHz counter > [0.375642] clocksource: Switched to clocksource hpet > [0.392540] clocksource: acpi_pm: mask: 0xff max_cycles: 0xff, > max_idle_ns: 2085701024 ns > [1.137978] rtc_cmos 00:01: alarms up to one month, y3k, 114 bytes nvram, > hpet irqs > > > Sorry to bother but I'd like to report to debian this known bug in > bugzilla.kernel = https://bugzilla.kernel.org/show_bug.cgi?id=202525 and > Lenovo > = https://forums.lenovo.com/t5/Other-Linux-Discussions/Clocksource-falling- > back-to-HPET-bec-TSC-is-unstable-ThinkPad-E14-Gen-2-maybe-others/m-p/5036464 If I did follow correctly the bugzilla entry then this is actually something which needs to be fixed in firmware. So I would tend to close this one again. Regards, Salvatore
Bug#991509: linux-image-amd64: marking TSC unstable due to check_tsc_sync_source failed (AMD Ryzen)
Package: linux-image-amd64 Version: 5.10.46-2 Severity: normal X-Debbugs-Cc: ledu...@hotmail.com Hello, My system is stuck with HPET clocksource dmesg | egrep -i 'tsc|hpet|clocksource' [0.00] tsc: Fast TSC calibration using PIT [0.00] tsc: Detected 2096.096 MHz processor [0.004968] ACPI: HPET 0xB90A3000 38 (v01 LENOVO TP-R11 1210 PTEC 0002) [0.005018] ACPI: Reserving HPET table memory at [mem 0xb90a3000-0xb90a3037] [0.014115] ACPI: HPET id: 0x43538210 base: 0xfed0 [0.014183] clocksource: refined-jiffies: mask: 0x max_cycles: 0x, max_idle_ns: 7645519600211568 ns [0.059588] clocksource: hpet: mask: 0x max_cycles: 0x, max_idle_ns: 133484873504 ns [0.079620] clocksource: tsc-early: mask: 0x max_cycles: 0x1e36c89f085, max_idle_ns: 440795235573 ns [0.199622] TSC synchronization [CPU#0 -> CPU#1]: [0.199622] Measured 5479288407 cycles TSC warp between CPUs, turning off TSC clock. [0.199622] tsc: Marking TSC unstable due to check_tsc_sync_source failed [0.216551] clocksource: jiffies: mask: 0x max_cycles: 0x, max_idle_ns: 764504178510 ns [0.373390] hpet0: at MMIO 0xfed0, IRQs 2, 8, 0 [0.373393] hpet0: 3 comparators, 32-bit 14.318180 MHz counter [0.375642] clocksource: Switched to clocksource hpet [0.392540] clocksource: acpi_pm: mask: 0xff max_cycles: 0xff, max_idle_ns: 2085701024 ns [1.137978] rtc_cmos 00:01: alarms up to one month, y3k, 114 bytes nvram, hpet irqs Sorry to bother but I'd like to report to debian this known bug in bugzilla.kernel = https://bugzilla.kernel.org/show_bug.cgi?id=202525 and Lenovo = https://forums.lenovo.com/t5/Other-Linux-Discussions/Clocksource-falling- back-to-HPET-bec-TSC-is-unstable-ThinkPad-E14-Gen-2-maybe-others/m-p/5036464 -- System Information: Debian Release: 11.0 APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.10.0-8-amd64 (SMP w/8 CPU threads) Locale: LANG=es_CO.UTF-8, LC_CTYPE=es_CO.UTF-8 (charmap=UTF-8), LANGUAGE=es_CO:es Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages linux-image-amd64 depends on: ii linux-image-5.10.0-8-amd64 5.10.46-2 linux-image-amd64 recommends no packages. linux-image-amd64 suggests no packages.
