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Kernel: Handle string format error in page_fault_handler(..) :^)

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Utilize the new KString::formatted to provide a fallback
if formatting fails because of OOM or whatever reason.
This commit is contained in:
Brian Gianforcaro 2021-11-20 00:45:14 -08:00 • committed by Andreas Kling
parent 4cc41ea186
commit a5cec06135
1 changed files with 3 additions and 1 deletions
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4
Kernel/Arch/x86/common/Interrupts.cpp
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@ -403,7 +403,9 @@ void page_fault_handler(TrapFrame* trap)
if (current_thread) {
auto& current_process = current_thread->process();
if (current_process.is_user_process()) {
(void)current_process.try_set_coredump_property("fault_address"sv, String::formatted("{:p}", fault_address));
auto fault_address_string = KString::formatted("{:p}", fault_address);
auto fault_address_view = fault_address_string.is_error() ? ""sv : fault_address_string.value()->view();
(void)current_process.try_set_coredump_property("fault_address"sv, fault_address_view);
(void)current_process.try_set_coredump_property("fault_type"sv, fault.type() == PageFault::Type::PageNotPresent ? "NotPresent"sv : "ProtectionViolation"sv);
StringView fault_access;
if (fault.is_instruction_fetch())