INFRA Signal 391
tlbi= Boot Option Submitted Ahead Of Linux 7.2 Kernel Release
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Ahead of the Linux 7.2 kernel stable release expected in the coming hours, a last-minute x86/urgent pull request added the new tlbi= boot option.
The patch introduces a new boot-time parameter for x86 systems, giving engineers another way to influence kernel behavior at boot without rebuilding. It can be used to test or tune kernel behavior as needed.
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A last-minute x86/urgent pull request submitted the tlbi= boot option patch.
The patch was submitted ahead of the expected Linux 7.2 kernel stable release.
The new option can be set at boot time on x86 systems to affect kernel behavior.
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What the cluster adds up to.
The Phoronix feed reports that a last-minute x86/urgent pull request was submitted. This pull request contains a single patch that adds a new tlbi= boot option. The submission occurred ahead of the expected Linux 7.2 kernel stable release. The change is therefore tied to the upcoming 7.2 release cycle.
To use the new option engineers must be running a kernel that includes the patch, i.e., Linux 7.2 or a back-ported version. Adding the option requires editing the bootloader configuration to pass tlbi= with a desired value. No kernel recompilation is needed; the option is read at boot time. The effort is limited to a configuration change and a brief verification step.
The tlbi= option is specific to x86 systems, so it has no effect on other architectures. Kernels older than the patch will ignore the option or treat it as unknown, potentially causing boot errors. The bootloader must support passing arbitrary kernel parameters; some embedded bootloaders may restrict this. If an invalid value is supplied the kernel may behave unpredictably, so testing is advised.
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