iATKOS | United Kingdom

i recently got this macbook (7,1 a1342 mid-2010) and used OCLP 2.4.1 to install monterey 12.7.4. i then updated to monterey 12.7.6 via system settings, and installed the root patches afterwards.

the machine has been upgraded to 16gb ram (not sure brand, etc) and an OWC mercury electra 3g SSD. the disc drive has also been disconnected/removed. everything else is stock.

i don't do anything with the machine aside from browse the web with firefox. thus the crash always happens while i'm using firefox. sometimes it will go several days without crashing, sometimes it will crash several times a day.

first, the system will lock up but i'll still be able to move the mouse pointer. but if i click on the trackpad the pointer turns into the rainbow wheel. shortly after that the mouse pointer will freeze and i'm unable to do anything else. interestingly, after the system completely locks up, the time in the menu bar continues to count (i have it set to show the seconds). using the force quit keyboard shortcut does nothing.

the only resolution is to hold the power button to hard power off. after rebooting it's random as to whether or not i'll get a crash report. sometimes i do, most times i don't. i'll paste the most recent crash report below-

panic(cpu 1 caller 0xffffff8006d5a99f): userspace watchdog timeout: no successful checkins from logd in 120 seconds service returned not alive with context : unresponsive dispatch queue(s): com.apple.firehose.io-wl service: logd, total successful checkins since wake (810 seconds ago): 70, last successful checkin: 120 seconds ago service: opendirectoryd, total successful checkins since wake (810 seconds ago): 82, last successful checkin: 0 seconds ago Panicked task 0xffffff96e0251380: 4 threads: pid 91: watchdogd Backtrace (CPU 1), panicked thread: 0xffffffa544e33aa0, Frame : Return Address 0xffffffbdc586b690 : 0xffffff8003879a3d mach_kernel : _handle_debugger_trap + 0x41d 0xffffffbdc586b6e0 : 0xffffff80039dcd26 mach_kernel : _kdp_i386_trap + 0x116 0xffffffbdc586b720 : 0xffffff80039cc093 mach_kernel : _kernel_trap + 0x4d3 0xffffffbdc586b770 : 0xffffff8003819a90 mach_kernel : _return_from_trap + 0xe0 0xffffffbdc586b790 : 0xffffff8003879e0d mach_kernel : _DebuggerTrapWithState + 0xad 0xffffffbdc586b8b0 : 0xffffff80038795c6 mach_kernel : _panic_trap_to_debugger + 0x2b6 0xffffffbdc586b910 : 0xffffff8004114b33 mach_kernel : _panic_with_options + 0x89 0xffffffbdc586ba00 : 0xffffff8006d5a99f com.apple.driver.watchdog : __ZN10IOWatchdog14userspacePanicEP8OSObjectPvP25IOExternalMethodArguments.cold.1 + 0x27 0xffffffbdc586ba10 : 0xffffff8006d5a5f2 com.apple.driver.watchdog : __ZN10IOWatchdog35userspaceDisableUserspaceMonitoringEP8OSObjectPvP25IOExternalMethodArguments 0xffffffbdc586ba30 : 0xffffff8006d59971 com.apple.driver.watchdog : __ZN20IOWatchdogUserClient14externalMethodEjP25IOExternalMethodArgumentsP24IOExternalMethodDispatchP8OSObjectPv + 0x7f 0xffffffbdc586bb60 : 0xffffff800408323c mach_kernel : _is_io_connect_method + 0x42c 0xffffffbdc586bcc0 : 0xffffff8003982a46 mach_kernel : _iokit_server_routine + 0x4f56 0xffffffbdc586bdd0 : 0xffffff80038544cb mach_kernel : _ipc_kmsg_send + 0x46b 0xffffffbdc586be60 : 0xffffff800386ae49 mach_kernel : _mach_msg_overwrite_trap + 0x2c9 0xffffffbdc586bef0 : 0xffffff80039aed5a mach_kernel : _mach_call_munger64 + 0x1ea 0xffffffbdc586bfa0 : 0xffffff800381a276 mach_kernel : _hndl_mach_scall64 + 0x16 Kernel Extensions in backtrace: com.apple.driver.watchdog(1.0)[F0AE4794-0AD0-3919-ABFE-101DD2816E55]@0xffffff8006d58000->0xffffff8006d5afff Process name corresponding to current thread (0xffffffa544e33aa0): watchdogd Boot args: keepsyms=1 debug=0x100 -lilubetaall -btlfxallowanyaddr ipc_control_port_options=0 -nokcmismatchpanic Mac OS version: 21H1320 Kernel version: Darwin Kernel Version 21.6.0: Mon Jun 24 00:56:10 PDT 2024; root:xnu-8020.240.18.709.2~1/RELEASE_X86_64 Kernel UUID: AAF3C70C-3331-335A-96FB-D338CFE178F0 KernelCache slide: 0x0000000003600000 KernelCache base: 0xffffff8003800000 Kernel slide: 0x0000000003610000 Kernel text base: 0xffffff8003810000 __HIB text base: 0xffffff8003700000 System model name: MacBook7,1 (Mac-F22C89C8) System shutdown begun: NO Panic diags file available: YES (0x0) Hibernation exit count: 8 System uptime in nanoseconds: 35556507141498 Last Sleep: absolute base_tsc base_nano Uptime : 0x00002056a4fa5303 Sleep : 0x00001f96866873af 0x00000653942f3e11 0x00001f9697211cbf Wake : 0x00001f99b835000b 0x0000000070cba578 0x00001f99b0b518f4 Compressor Info: 0% of compressed pages limit (OK) and 0% of segments limit (OK) with 0 swapfiles and OK swap space Zone info: Zone map: 0xffffff90781a8000 - 0xffffffb0781a8000 . PGZ : 0xff& 

is that useful for anyone to help diagnose the cause for the crashes? i'm hoping it's software related but i realize that it could definitely be hardware as this machine is 15 years old.

i've tested the ram with memtest86 bootable usb and there were no errors. i also booted into the apple diagnostics testing (press "D" while booting) and those tests didn't return any errors either. using disk utility and trying "first aid" doesn't show any errors. i'm not sure what else to test/how to test anything else.

thanks for any help or suggestions!