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openSUSE:11.4
itrace
itrace.branch-trace-safe.patch
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File itrace.branch-trace-safe.patch of Package itrace
Bug 417296 - FATE 304111/200978 SystemTap-based ITrace Patch to fix intermittent crash when doing branch tracing --- src/driver/ppc64/pi_itrace.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/src/driver/ppc64/pi_itrace.c +++ b/src/driver/ppc64/pi_itrace.c @@ -295,6 +295,15 @@ int is_stepping_safe_br(struct pt_regs * { unsigned long current_addr; + current_addr = regs->nip; + while (current_addr < (regs->nip + 80)) { + current_addr += 4; + if (clears_msrri(regs, *((unsigned int *)current_addr), 1)) { + skip_trace_section(regs); + return 0; + } + } + for (current_addr = regs->nip - 0x20; current_addr <= (regs->nip + 0x20); current_addr += 4) if (reservation_inst(*((unsigned int *)current_addr))) {
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