linux-next: build failure after merge of the ftrace tree
Mark Brown
maintainerHi all,
After merging the ftrace tree, today's linux-next build (x86_64 allmodconfig) failed like this:
/tmp/next/build/kernel/trace/trace_wprobe.c: In function '__register_trace_wprobe':/tmp/next/build/kernel/trace/trace_wprobe.c:176:20: error: cast to generic address space pointer from disjoint '__seg_gs' address space pointer [-Werror]
176 | if (IS_ERR((void * __force)tw->bp_event)) {
| ^/tmp/next/build/kernel/trace/trace_wprobe.c:177:35: error: cast to generic address space pointer from disjoint '__seg_gs' address space pointer [-Werror]
177 | int ret = PTR_ERR((void * __force)tw->bp_event);
| ^
Caused by commit
eaa7b0b3b9875 ("tracing: wprobe: Add watchpoint probe event based on hardware breakpoint")
I have used the version from 20250929 instead.
Quoted 13 lines · On Thu, 2 Oct 2025 16:50:38 +0100 Mark Brown <[email protected]> wrote:
Hi all,
After merging the ftrace tree, today's linux-next build (
x86_64allmodconfig) failed like this:
/tmp/next/build/kernel/trace/trace_wprobe.c: In function '__register_trace_wprobe':/tmp/next/build/kernel/trace/trace_wprobe.c:176:20: error: cast to generic address space pointer from disjoint '__seg_gs' address space pointer [-Werror]
176 | if (IS_ERR((void * __force)tw->bp_event)) {
| ^/tmp/next/build/kernel/trace/trace_wprobe.c:177:35: error: cast to generic address space pointer from disjoint '__seg_gs' address space pointer [-Werror]
177 | int ret =PTR_ERR((void * __force)tw->bp_event);
| ^
Quoted 5 lines
Caused by commit
eaa7b0b3b9875("tracing: wprobe: Add watchpoint probe event based on hardware breakpoint")I have used the version from 20250929 instead.
Oops, this is the error. Thanks for reporting!
Signature · 1 line
Masami Hiramatsu (Google) <[email protected]>