id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,blockedby,blocking,platform 5956,PPC boot fails on double lock of mutex,stevenh,axeld,"On revision r36760, after the fix by Ingo in r36748 to disable the debug syslog feature for openfirmware, the booting now fails when creating a VMNullCache for 'iospace'. {{{ Loading ELF checking for memory... 0: base = 0x00000000, size = 268435456 1: empty region total physical memory = 256 MB suggested page table size = 2097152 need new page table, size = 2097152! new table at: 0x00200000 MSR: 0x00003030 found 25 translations found exception handlers! found page table! virt_allocated: 20 phys_allocated: 5 phys_memory: 1 found CPU: /cpus/PowerPC,G4 CPU clock frequency: 1249999995 bus clock frequency: 166483989 time base frequency: 41620997 mmu_alloc: va 0x80084000, pa 0x00003000, size 16384 platform_init_heap() mmu_alloc: va 0x80088000, pa 0x00007000, size 65536 heap base = 0x80088000 heap top = 0x80098000 adding args: '' Welcome to the Haiku boot loader! boot path = ""/pci@f4000000/ethernet@f:192.168.1.35,boot_loader_openfirmware"" boot type = network add_partitions_for(0x80088234, mountFS = no) add_partitions_for(fd = 0, mountFS = no) 0x80088280 Partition::Partition 0x80088280 Partition::Scan() check for partitioning_system: Amiga Partition Map check for partitioning_system: Intel Partition Map check for partitioning_system: Intel Extended Partition check for partitioning_system: Apple Partition Map 0x80088280 Partition::_Mount check for file_system: BFS Filesystem load kernel... mmu_alloc: va 0x80098000, pa 0x00400000, size 1863680 mmu_alloc: va 0x8025f000, pa 0x00017000, size 102400 mmu_alloc: va 0x80278000, pa 0x00030000, size 192512 mmu_alloc: va 0x802a7000, pa 0x0005f000, size 32768 mmu_alloc: va 0x802af000, pa 0x00067000, size 45056 mmu_alloc: va 0x802ba000, pa 0x00072000, size 45056 mmu_alloc: va 0x802c5000, pa 0x0007d000, size 16384 mmu_alloc: va 0x802c9000, pa 0x00081000, size 229376 mmu_alloc: va 0x80301000, pa 0x000b9000, size 32768 mmu_alloc: va 0x80309000, pa 0x000c1000, size 28672 mmu_alloc: va 0x80310000, pa 0x000c8000, size 8192 mmu_alloc: va 0x80312000, pa 0x000ca000, size 8192 mmu_alloc: va 0x80314000, pa 0x000cc000, size 102400 mmu_alloc: va 0x8032d000, pa 0x000e5000, size 32768 mmu_alloc: va 0x80335000, pa 0x000ed000, size 12288 mmu_alloc: va 0x80338000, pa 0x000f0000, size 61440 mmu_alloc: va 0x80347000, pa 0x000ff000, size 8192 mmu_alloc: va 0x80349000, pa 0x00140000, size 12288 mmu_alloc: va 0x8034c000, pa 0x00143000, size 12288 mmu_alloc: va 0x8034f000, pa 0x00146000, size 32768 mmu_alloc: va 0x80357000, pa 0x0014e000, size 102400 mmu_alloc: va 0x80370000, pa 0x00167000, size 8192 mmu_alloc: va 0x80372000, pa 0x005c7000, size 962560 mmu_alloc: va 0x8045d000, pa 0x00169000, size 40960 mmu_alloc: va 0x80467000, pa 0x00173000, size 32768 mmu_alloc: va 0x8046f000, pa 0x0017b000, size 16384 mmu_alloc: va 0x80473000, pa 0x0017f000, size 16384 mmu_alloc: va 0x80477000, pa 0x00183000, size 20480 mmu_alloc: va 0x8047c000, pa 0x00188000, size 16384 mmu_alloc: va 0x80480000, pa 0x0018c000, size 110592 mmu_alloc: va 0x8049b000, pa 0x001a7000, size 32768 mmu_alloc: va 0x804a3000, pa 0x001af000, size 86016 mmu_alloc: va 0x804b8000, pa 0x001c4000, size 24576 kernel entry at 0x8010e2dc kernel stack top: 0x80088000 Welcome to kernel debugger output! Haiku revision: 36760 heap_add_area: area -1 added to small heap 0x85000000 - usable range 0x8500d000 - 0x85800000 heap_add_area: area -1 added to medium heap 0x85800000 - usable range 0x85801000 - 0x85ccc000 heap_add_area: area -1 added to large heap 0x85cccccc - usable range 0x85cce000 - 0x86000000 reserve_boot_loader_ranges(): Skipping range: 0x00000000, 12288 reserve_boot_loader_ranges(): Skipping range: 0x00102000, 180224 reserve_boot_loader_ranges(): Skipping range: 0x0012f000, 45056 reserve_boot_loader_ranges(): Skipping range: 0x00200000, 2097152 PANIC: _mutex_lock(): double lock of 0x0000001c by thread 0 Welcome to Kernel Debugging Land... Running on CPU 0 kdebug > }}} I'm keen to see Haiku booting on PPC and would love any help regarding this issue and a bit of background as to what might be going wrong. Is '1c' a valid mutex ID? Does that mean there are 28 mutexs already in operation? Does openfirmware/ppc allow the creation of null caches? Am I running out of RAM? (my eMac 1.25ghz only had 256mb right now) Meanwhile, I cannot use the debugger as I have no keyboard at the kdebug prompt. I'll work on this later... but if I could get an idea as to what commands to run, then I'll hard code them to execute after the debugger prompt appears. ",bug,closed,normal,R1,System/Kernel,R1/Development,fixed,,planche2k@…,,1048,PowerPC