#5911: PANIC: ASSERT FAILED in vm_page.cpp when booting cd ---------------------------+------------------------------------------------ Reporter: idefix | Owner: axeld Type: bug | Status: new Priority: normal | Milestone: R1 Component: System/Kernel | Version: R1/Development Keywords: | Blockedby: Platform: x86 | Blocking: ---------------------------+------------------------------------------------ When I boot the latest Alpha 2 nightly cd ([http://haiku-files.org/cd /haiku-r1a2-rc-r36601-x86gcc2hybrid-cd.zip haiku-r1a2-rc-r36601 -x86gcc2hybrid-cd.zip]) on my Dell Latitude Cpi D233ST (PII 233 MHz, 64 MB) it goes immediately in KDL when the boot screen is shown. The panic looks a lot like ticket:5208, but is at another position in `vm_page.cpp` and the backtrace is different: {{{ Welcome to kernel debugger output! Haiku revision: 36601 CPU 0: type 0 family 6 extended_family 0 model 5 extended_model 0 stepping 2, string 'GenuineIntel' CPU 0: features: fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr heap_add_area: area -1 added to small heap 0x83800000 - usable range 0x83804000 - 0x83a00000 heap_add_area: area -1 added to medium heap 0x83a00000 - usable range 0x83a01000 - 0x83b33000 heap_add_area: area -1 added to large heap 0x83b33333 - usable range 0x83b34000 - 0x83c00000 add_memory_type_range(4, 0x0, 0xa0000, 6) add_memory_type_range(5, 0xe0000, 0x20000, 6) add_memory_type_range(80, 0xe0000000, 0x180000, 0) PANIC: ASSERT FAILED (/storage/Build-O-Matic/active_worker/output/haiku/src/system/kernel/vm/vm_page.cpp:3419): ( page->State() != PAGE_STATE_FREE && page->State() != PAGE_STATE_CLEAR); page: 0x83caa800 Welcome to Kernel Debugging Land... Thread 0 "" running on CPU 0 stack trace for thread 0 "" kernel stack: 0x00000000 to 0x00000000 frame caller <image>:function + offset 0 81004c44 (+ 32) 800ff4b6 1 81004c64 (+ 16) 80073b6b 2 81004c74 (+ 12) 8010704a 3 81004c80 (+ 48) 80075603 4 81004cb0 (+ 64) 80073d8f 5 81004cf0 (+ 48) 800740f0 6 81004d20 (+ 48) 80075974 7 81004d50 (+ 64) 800f0669 8 81004d90 (+ 256) 800dfc5b 9 81004e90 (+ 96) 800e86f4 10 81004ef0 (+ 144) 80074888 11 81004f80 (+ 48) 80075292 12 81004fb0 (+ 64) 8004e91e }}} Continuing the KDL doesn't really get it any further (see [attachment:seriallog.txt attached serial log]). -- Ticket URL: <http://dev.haiku-os.org/ticket/5911> Haiku <http://dev.haiku-os.org> Haiku - the operating system.