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Kernel: Disable SMAP protection while capturing profile samples

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This commit is contained in:
Andreas Kling 2020-01-12 02:02:29 +01:00
parent ef05bb61a0
commit 9e51291aed
1 changed files with 1 additions and 0 deletions
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Kernel/Scheduler.cpp
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@ -562,6 +562,7 @@ void Scheduler::timer_tick(RegisterDump& regs)
Process::update_info_page_timestamp(tv); Process::update_info_page_timestamp(tv);
if (current->process().is_profiling()) { if (current->process().is_profiling()) {
SmapDisabler disabler;
auto backtrace = current->raw_backtrace(regs.ebp); auto backtrace = current->raw_backtrace(regs.ebp);
auto& sample = Profiling::next_sample_slot(); auto& sample = Profiling::next_sample_slot();
sample.pid = current->pid(); sample.pid = current->pid();