On Fri, 9 Mar 2018 23:15:55 +
Sergei Trofimovich wrote:
I tried to explain in more detail breakage mechanics
of unwinder and gcc code generation quirks at:
https://trofi.github.io/posts/210-ptrace-and-accidental-boot-fix-on-ia64.html
Hopefully it gives better intuition of code change
On Fri, 9 Mar 2018 23:15:55 +
Sergei Trofimovich wrote:
I tried to explain in more detail breakage mechanics
of unwinder and gcc code generation quirks at:
https://trofi.github.io/posts/210-ptrace-and-accidental-boot-fix-on-ia64.html
Hopefully it gives better intuition of code change
The strace breakage looks like that:
./strace: get_regs: get_regs_error: Input/output error
It happens because ia64 needs to load unwind tables
to read certain registers in 'PTRACE_GETREGS'. Unwind
tables fail to load at kernel startup due to GCC quirk
on the following code (logged as PR 84184):
The strace breakage looks like that:
./strace: get_regs: get_regs_error: Input/output error
It happens because ia64 needs to load unwind tables
to read certain registers in 'PTRACE_GETREGS'. Unwind
tables fail to load at kernel startup due to GCC quirk
on the following code (logged as PR 84184):
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