* Mike Galbraith <efa...@gmx.de> wrote: > Hi Ingo, > > FYI, my i4790 box reboots immediately.. or close enough to it that you > see nothing at all before again meeting the bios splash. Master with > the ~same config works fine. I haven't poked around yet (work).
Hm, so there's been a few 'dangerous' pieces of work merged yesterday-ish. Prime suspects would be: triton:~/tip> gll linus..x86/pti 0564258fb2cf: x86/pti: Leave kernel text global for !PCID a5df4f1f0d78: x86/pti: Never implicitly clear _PAGE_GLOBAL for kernel image e0bb456e3250: x86/pti: Enable global pages for shared areas efad2b415152: x86/mm: Do not forbid _PAGE_RW before init for __ro_after_init 4ddee6efdcd0: x86/mm: Comment _PAGE_GLOBAL mystery e71e836f463d: x86/mm: Remove extra filtering in pageattr code 64c80759408f: x86/mm: Do not auto-massage page protections 6baf4bec02db: x86/espfix: Document use of _PAGE_GLOBAL 8a57f4849f4f: x86/mm: Introduce "default" kernel PTE mask 606c7193d5fb: x86/mm: Undo double _PAGE_PSE clearing d1440b23c922: x86/mm: Factor out pageattr _PAGE_GLOBAL setting ee1400dda318: Merge branch 'linus' into x86/pti to pick up upstream changes 071ccc966ba5: x86/entry/64: Drop idtentry's manual stack switch for user entries 9820e1c3376c: x86/uapi: Fix asm/bootparam.h userspace compilation errors ... which you could test via 0564258fb2cf: if that insta-reboots too then 9820e1c3376c^1 is expected to work and 4 bisection steps should pinpoint the guilty commit ... But there's also the syscall rework: triton:~/tip> gll linus..x86/asm c76fc9826075: syscalls/x86: Adapt syscall_wrapper.h to the new syscall stub naming convention d5a00528b58c: syscalls/core, syscalls/x86: Rename struct pt_regs-based sys_*() to __x64_sys_*() 5ac9efa3c50d: syscalls/core, syscalls/x86: Clean up compat syscall stub naming convention e145242ea0df: syscalls/core, syscalls/x86: Clean up syscall stub naming convention 6dc936f175cc: syscalls/x86: Extend register clearing on syscall entry to lower registers f8781c4a2263: syscalls/x86: Unconditionally enable 'struct pt_regs' based syscalls on x86_64 ebeb8c82ffaf: syscalls/x86: Use 'struct pt_regs' based syscall calling for IA32_EMULATION and x32 7303e30ec1d8: syscalls/core: Prepare CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y for compat syscalls fa697140f9a2: syscalls/x86: Use 'struct pt_regs' based syscall calling convention for 64-bit syscalls 1bd21c6c21e8: syscalls/core: Introduce CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y dfe64506c01e: x86/syscalls: Don't pointlessly reload the system call number ... which you could test via c76fc9826075: if that insta-reboots then dfe64506c01e^1 should be good and 4 bisection steps should suffice. Thanks, Ingo