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Groups > linux.kernel > #1425848
| From | Brian Gerst <brgerst@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 2/6] x86-64, kgdb: clear GDB_PS on 64-bit |
| Date | 2016-06-18 23:00 +0200 |
| Message-ID | <rLvvs-F3-15@gated-at.bofh.it> (permalink) |
| References | <rLvvr-F3-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
switch_to() no longer saves EFLAGS, so it's bogus to look for it on the stack. Set it to zero like 32-bit. Signed-off-by: Brian Gerst <brgerst@gmail.com> --- arch/x86/kernel/kgdb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index fe649a5..5e3f294 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -176,7 +176,7 @@ void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) gdb_regs[GDB_FS] = 0xFFFF; gdb_regs[GDB_GS] = 0xFFFF; #else - gdb_regs32[GDB_PS] = *(unsigned long *)(p->thread.sp + 8); + gdb_regs32[GDB_PS] = 0; gdb_regs32[GDB_CS] = __KERNEL_CS; gdb_regs32[GDB_SS] = __KERNEL_DS; gdb_regs[GDB_R8] = 0; -- 2.5.5
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[PATCH v2 0/6] x86: Rewrite switch_to() Brian Gerst <brgerst@gmail.com> - 2016-06-18 23:00 +0200
[PATCH v2 6/6] x86: Fix thread_saved_pc() Brian Gerst <brgerst@gmail.com> - 2016-06-18 23:00 +0200
Re: [PATCH v2 6/6] x86: Fix thread_saved_pc() Josh Poimboeuf <jpoimboe@redhat.com> - 2016-06-20 18:10 +0200
Re: [PATCH v2 6/6] x86: Fix thread_saved_pc() Brian Gerst <brgerst@gmail.com> - 2016-06-22 06:30 +0200
[PATCH v2 2/6] x86-64, kgdb: clear GDB_PS on 64-bit Brian Gerst <brgerst@gmail.com> - 2016-06-18 23:00 +0200
[PATCH v2 5/6] x86: Pass kernel thread parameters in fork_frame Brian Gerst <brgerst@gmail.com> - 2016-06-18 23:00 +0200
Re: [PATCH v2 5/6] x86: Pass kernel thread parameters in fork_frame Andy Lutomirski <luto@amacapital.net> - 2016-06-19 23:30 +0200
Re: [PATCH v2 5/6] x86: Pass kernel thread parameters in fork_frame Brian Gerst <brgerst@gmail.com> - 2016-06-20 00:10 +0200
Re: [PATCH v2 5/6] x86: Pass kernel thread parameters in fork_frame Borislav Petkov <bp@suse.de> - 2016-06-20 16:00 +0200
Re: [PATCH v2 5/6] x86: Pass kernel thread parameters in fork_frame Brian Gerst <brgerst@gmail.com> - 2016-06-20 17:20 +0200
Re: [PATCH v2 5/6] x86: Pass kernel thread parameters in fork_frame Borislav Petkov <bp@alien8.de> - 2016-06-21 13:50 +0200
Re: [PATCH v2 5/6] x86: Pass kernel thread parameters in fork_frame Brian Gerst <brgerst@gmail.com> - 2016-06-22 10:30 +0200
Re: [PATCH v2 0/6] x86: Rewrite switch_to() Brian Gerst <brgerst@gmail.com> - 2016-06-20 00:10 +0200
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