Comments (2)
Hm, maybe the "no changed functions were found" check happens before the "some unexpected section changed" check?
from kpatch.
Yeah, with a bigger patch that changes another non-kprobes function, I get the error I expected:
~ $ cat nmi.patch
Index: src/arch/x86/kernel/nmi.c
===================================================================
--- src.orig/arch/x86/kernel/nmi.c
+++ src/arch/x86/kernel/nmi.c
@@ -146,6 +146,8 @@ int __register_nmi_handler(unsigned int
if (!action->handler)
return -EINVAL;
+ printk("a\n");
+
spin_lock_irqsave(&desc->lock, flags);
/*
@@ -518,6 +520,8 @@ do_nmi(struct pt_regs *regs, long error_
inc_irq_stat(__nmi_count);
+ printk("nmi\n");
+
if (!ignore_nmis)
default_do_nmi(regs);
~ $ kpatch-build nmi.patch
Using cache at /home/jpoimboe/.kpatch/3.13.10-200.fc20.x86_64/src
Testing patch file
patching file arch/x86/kernel/nmi.c
Building original kernel
Building patched kernel
Detecting changed objects
Rebuilding changed objects
Extracting new and modified ELF sections
nmi.o: changed function: __register_nmi_handler
nmi.o: changed function: unregister_nmi_handler
nmi.o: changed section .kprobes.text not selected for inclusion
/usr/local/libexec/kpatch/create-diff-object: unreconcilable difference
ERROR: kpatch build failed. Check /tmp/kpatch-build-1398785999.log for more details.
from kpatch.
Related Issues (20)
- create-diff-object static local variable correlation and inlining HOT 5
- 1.0 release HOT 2
- Do we need more robust archeticture protection HOT 4
- kpatch-build: verify_patch_files might miss a parameter HOT 2
- ERROR in find_local_syms, couldn't find matching XXX local symbols in vmlinux symbol table HOT 14
- Can you add support for Rocky and Alma? HOT 1
- relocation with type R_X86_64_GOTPCREL is not supported HOT 5
- Arch Compile kpatch-git test failed HOT 4
- Regarding "statically allocated data" again HOT 2
- kpatch-build error when modifying an object file's only syscall
- nowhere to find the definition of klp_register_patch HOT 5
- x86 paravirt code uses alternatives v6.8+ HOT 1
- special-static.patch can fail to build on s390x / upstream v6.8 HOT 6
- CONFIG_FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY not supported on ppc64le HOT 6
- function __pfx_new_sync_read has no fentry/mcount call, unable to patch HOT 6
- Unchanged and unpatchable function moves from .text to .text.unlikely HOT 5
- Why did the kpatch-build script export the KPATCH-BUILD environment variable from the BUILD directory to the SOURCE directory? HOT 3
- CONFIG_WERROR=y and CONFIG_LD_ORPHAN_WARN_LEVEL="error" break kpatch-build HOT 2
- linux 6.9.0-rc6 can't find special struct paravirt_patch_site size HOT 6
- fair.o: changed section .data..read_mostly not selected for inclusion HOT 11
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from kpatch.