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ladybird/Kernel
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Brian Gianforcaro 2d06f6399f Kernel: Fix SMP deadlock in MM::allocate_contiguous_physical_pages 
This deadlock was introduced with the creation of this API. The lock
order is such that we always need to take the page directory lock
before we ever take the MM lock.

This function violated that, as both Region creation and region
destruction require the pd and mm locks, but with the mm lock
already acquired we deadlocked with SMP mode enabled while other
threads were allocating regions.

With this change SMP boots to the desktop successfully for me,
(and then subsequently has other issues). :^)
2022-08-09 12:09:59 +02:00
..
API Kernel/LibC: Implement posix syscall clock_getres() 2022-07-25 15:33:50 +02:00
Arch Kernel: Rounding size of bss to be a multiple of 8 for aarch64 linker.ld 2022-08-06 14:00:54 +01:00
Bus Kernel: Remove PCI information node from ProcFS 2022-07-30 23:29:07 +02:00
Devices Kernel: Detect the Insert key 2022-07-30 23:25:20 +02:00
FileSystem Kernel/FileSystem: Use a new debug flag for SysFS debug messages 2022-08-08 02:33:25 +00:00
Firmware Kernel/SysFS: Mark SysFSDirectory traverse and lookup methods as final 2022-07-15 12:29:23 +02:00
Graphics Kernel/SysFS: Fix parent directory hierarchy with symbolic links 2022-07-24 13:38:24 +01:00
Heap Everywhere: Make the codebase more architecture aware 2022-07-27 21:46:42 +00:00
Interrupts Everywhere: Use default StringView constructor over nullptr 2022-07-12 23:11:35 +02:00
Library Kernel+AK: Split Weakable.h into userspace and kernel variants 2022-06-15 17:15:04 +02:00
Locking Kernel: Don't check that interrupts are enabled during early boot 2022-07-19 12:12:13 +01:00
Memory Kernel: Fix SMP deadlock in MM::allocate_contiguous_physical_pages 2022-08-09 12:09:59 +02:00
Net Kernel: Silently discard SO_REUSEADDR 2022-08-01 04:23:41 +00:00
Prekernel Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Storage Kernel/SysFS: Fix parent directory hierarchy with symbolic links 2022-07-24 13:38:24 +01:00
Syscalls Everywhere: Make the codebase more architecture aware 2022-07-27 21:46:42 +00:00
Tasks Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Time Everywhere: Make the codebase more architecture aware 2022-07-27 21:46:42 +00:00
TTY Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
AddressSanitizer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
AddressSanitizer.h Everywhere: Use bgianf@serenityos.org for my copyright attribution 2021-04-22 21:15:54 +02:00
Assertions.h Kernel: Do not implement VERIFY_NOT_REACHED() as VERIFY(false) 2022-05-12 13:12:37 +02:00
AtomicEdgeAction.h Kernel: Add per platform Processor.h headers 2021-10-14 01:23:08 +01:00
BootInfo.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
CMakeLists.txt Kernel: Move DiskPartition up into Kernel/Storage 2022-07-21 20:13:44 +01:00
CMOS.cpp Kernel: Move x86 IO instructions code into the x86 specific folder 2021-10-01 12:27:20 +02:00
CMOS.h Everything: Move to SPDX license identifiers in all files. 2021-04-22 11:22:27 +02:00
CommandLine.cpp Everywhere: Replace single-char StringView op. arguments with chars 2022-07-12 23:11:35 +02:00
CommandLine.h Kernel/Graphics: Simplify the feature level of the Graphics subsystem 2022-05-05 20:55:57 +02:00
Coredump.cpp Everywhere: Make the codebase more architecture aware 2022-07-27 21:46:42 +00:00
Coredump.h Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
Debug.h.in Kernel/FileSystem: Use a new debug flag for SysFS debug messages 2022-08-08 02:33:25 +00:00
DoubleBuffer.cpp Kernel: Annotate all KBuffer and DoubleBuffer with a custom name 2022-07-12 00:55:31 +01:00
DoubleBuffer.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
embedmap.sh Kernel: Make new kernel build process work on macOS 2021-07-15 11:04:30 +02:00
Forward.h Everywhere: Prefix 'TYPEDEF_DISTINCT_ORDERED_ID' with 'AK_' 2022-07-22 23:09:43 +01:00
FutexQueue.cpp Kernel: Propagate OOM conditions out of sys$futex 2022-07-21 16:39:22 +02:00
FutexQueue.h Kernel: Propagate OOM conditions out of sys$futex 2022-07-21 16:39:22 +02:00
GlobalProcessExposed.cpp Kernel: Remove PCI information node from ProcFS 2022-07-30 23:29:07 +02:00
init.cpp Kernel/Graphics: Rename TextModeConsole => VGATextModeConsole 2022-07-13 19:15:17 +01:00
KBuffer.h Kernel: Annotate all KBuffer and DoubleBuffer with a custom name 2022-07-12 00:55:31 +01:00
KBufferBuilder.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
KBufferBuilder.h Kernel: Expose .length() of KBufferBuilder 2022-05-06 02:12:51 +04:30
KLexicalPath.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
KLexicalPath.h Everywhere: Pass AK::StringView by value 2021-11-11 01:27:46 +01:00
kprintf.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
kstdio.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
KString.cpp Kernel: Add an error propagating KString::format(..) API :^) 2021-11-30 11:16:35 +01:00
KString.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
KSyms.cpp Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
KSyms.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
MiniStdLib.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
mkmap.sh Kernel: Use the toolchain's nm in mkmap.sh 2021-12-30 18:10:51 +01:00
Multiboot.h Kernel: Only use multiboot framebuffer details if present 2022-01-06 22:34:11 +01:00
Panic.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Panic.h Kernel: Implement __panic() for the aarch64 Kernel 2022-05-03 21:53:36 +02:00
PerformanceEventBuffer.cpp Everywhere: Use default StringView constructor over nullptr 2022-07-12 23:11:35 +02:00
PerformanceEventBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
PerformanceManager.h Everywhere: Use default StringView constructor over nullptr 2022-07-12 23:11:35 +02:00
PhysicalAddress.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Process.cpp Everywhere: Make the codebase more architecture aware 2022-07-27 21:46:42 +00:00
Process.h Kernel/LibC: Implement posix syscall clock_getres() 2022-07-25 15:33:50 +02:00
ProcessExposed.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
ProcessExposed.h Kernel: Remove PCI information node from ProcFS 2022-07-30 23:29:07 +02:00
ProcessGroup.cpp Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
ProcessGroup.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ProcessProcFSTraits.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
ProcessSpecificExposed.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Random.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Random.h Kernel: Make PhysicalRegion.cpp compile on aarch64 2022-04-02 19:34:20 -07:00
RTC.cpp Everywhere: Fix many spelling errors 2022-01-07 10:56:59 +01:00
RTC.h Kernel: Ensure we read valid values from the RTC CMOS registers 2021-08-04 19:53:04 +02:00
SanCov.cpp Kernel: Add some implied auto qualifiers 2021-12-30 14:32:17 +01:00
Scheduler.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
Scheduler.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Sections.h Kernel: Use the whole kernel PD range when randomizing the KASLR offset 2022-03-23 19:49:49 +02:00
StdLib.cpp Kernel: Move Kernel/Arch/x86/SafeMem.h to Kernel/Arch/SafeMem.h 2022-05-03 21:53:36 +02:00
StdLib.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Syscall.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Thread.cpp Everywhere: Make the codebase more architecture aware 2022-07-27 21:46:42 +00:00
Thread.h Kernel: Support F_SETLKW in fcntl 2022-07-21 16:39:22 +02:00
ThreadBlockers.cpp Kernel: Support F_SETLKW in fcntl 2022-07-21 16:39:22 +02:00
ThreadTracer.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
ThreadTracer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
TimerQueue.cpp Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
TimerQueue.h Everywhere: Prefix 'TYPEDEF_DISTINCT_ORDERED_ID' with 'AK_' 2022-07-22 23:09:43 +01:00
UBSanitizer.cpp Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
UnixTypes.h Kernel: Add support for SA_SIGINFO 2022-03-04 20:07:05 +01:00
UserOrKernelBuffer.cpp Kernel: Replace KResult and KResultOr<T> with Error and ErrorOr<T> 2021-11-08 01:10:53 +01:00
UserOrKernelBuffer.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
VirtualAddress.h Everywhere: Add sv suffix to strings relying on StringView(char const*) 2022-07-12 23:11:35 +02:00
WaitQueue.cpp Kernel: Don't register thread as custom data for WaitQueueBlocker 2021-08-24 01:57:11 +02:00
WaitQueue.h Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
WorkQueue.cpp Kernel/Storage: Introduce basic abstraction layer for ATA components 2022-07-19 11:07:34 +01:00
WorkQueue.h Kernel/Storage: Introduce basic abstraction layer for ATA components 2022-07-19 11:07:34 +01:00