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From: Joerg Roedel <jroedel at suse.de> The IDT on 64bit contains vectors which use paranoid_entry() and/or IST stacks. To make these vectors work the TSS and the getcpu GDT entry need to be set up before the IDT is loaded. Signed-off-by: Joerg Roedel <jroedel at suse.de> --- arch/x86/include/asm/processor.h | 1 + arch/x86/kernel/cpu/common.c | 23 +++++++++++++++++++++++ arch/x86/kernel/smpboot.c | 2 +- 3 files changed, 25 insertions(+), 1 d...

On Mon, Sep 07, 2020 at 03:16:08PM +0200, Joerg Roedel wrote: > From: Joerg Roedel <jroedel at suse.de> > > The IDT on 64bit contains vectors which use paranoid_entry() and/or IST > stacks. To make these vectors work the TSS and the getcpu GDT entry need > to be set up before the IDT is loaded. > > Signed-off-by: Joerg Roedel <jroedel at suse.de> > --- > arch/x86/include/asm/processor.h | 1 + > arch/x86/kernel/cpu/common.c | 23 +++++++++++++++++++++++ > arch/x86/kernel/smpboot.c | 2 +- >...

...tions. In particular this means that the early FSGSBASE and TSS setup is gone now. Also the patch which moved the idt_table to the data segement is now removed. A related change was necessary in the boot path of secondary CPUs, because those loaded the runtime IDT before setting up the TSS and the getcpu GDT entry. This is now in proper order so that IST exceptions will work when the runtime IDT is loaded for the first time. This setup is added in patch 67. The cpu_init() function is untouched so that it still act as the intended cpu-state barrier, regardless of what happens before. The code surv...

...tions. In particular this means that the early FSGSBASE and TSS setup is gone now. Also the patch which moved the idt_table to the data segement is now removed. A related change was necessary in the boot path of secondary CPUs, because those loaded the runtime IDT before setting up the TSS and the getcpu GDT entry. This is now in proper order so that IST exceptions will work when the runtime IDT is loaded for the first time. This setup is added in patch 67. The cpu_init() function is untouched so that it still act as the intended cpu-state barrier, regardless of what happens before. The code surv...

...YSCALL FOUND: fchmodat SYSCALL FOUND: chroot SYSCALL FOUND: lgetxattr SYSCALL FOUND: preadv SYSCALL FOUND: getresgid SYSCALL FOUND: pselect6 SYSCALL FOUND: pciconfig_write SYSCALL FOUND: getsockname SYSCALL FOUND: eventfd SYSCALL FOUND: setitimer SYSCALL FOUND: sched_get_priority_max SYSCALL FOUND: getcpu SYSCALL FOUND: sendfile SYSCALL FOUND: pipe2 SYSCALL FOUND: acct SYSCALL FOUND: afs_syscall SYSCALL FOUND: get_mempolicy SYSCALL FOUND: fchdir SYSCALL FOUND: mlock SYSCALL FOUND: mmap SYSCALL FOUND: send SYSCALL FOUND: utimes SYSCALL FOUND: getcwd SYSCALL FOUND: sched_get_priority_min SYSCALL FOUND...

On Tue, Aug 20, 2013 at 07:44:39AM +0200, leroy christophe wrote: > > > Find attached two patches I have in order to build klibc 2.0.2 > against kernel 3.8.13 > We had to introduce those patches when going from kernel 3.6 to kernel 3.7 > Hope it helps. > those patches are wrong and again very brittle. just use the way it is described in `make help': A) cd ~/src/linux