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Description of problem: If specify 'notsc' in kdump kernel, then trigger a crash, kdump kernel will hang in calibrate_delay_converge() and wait for jiffies changes. serial log as follows: tsc: Fast TSC calibration using PIT tsc: Detected 2099.947 MHz processor Calibrating delay loop... The reason for jiffies not changes is there's no timer interrupt passed to dump-capture kernel. Version-Release number of selected component (if applicable): This is because no timer interrupt in kdump kernel before apic mode is enabled. How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 25 kernel bugs. Fedora 25 has now been rebased to 4.9.3-200.fc25. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
This has not been resolved in upstream, change it to rawhide because I didn't saw f26 version.
Should have been solved in latest rawhide and F31 kernels, if not please reopen it.