Bug #911
Updated by robgar about 10 years ago
hey, I just booted with hw.physmem=64m and got a panic when trying to load a module: panic: kld: malloc limit exceeded (kgdb) bt #0 dumpsys () at thread.h:83 #1 0xc018450c in boot (howto=256) at /usr/build/src/sys/kern/kern_shutdown.c:375 #2 0xc0184661 in panic (fmt=Variable "fmt" is not available. ) at /usr/build/src/sys/kern/kern_shutdown.c:800 #3 0xc0182129 in kmalloc (size=78, type=0xc02f5600, flags=2) at /usr/build/src/sys/kern/kern_slaballoc.c:445 #4 0xc01678b4 in linker_make_file (pathname=0xc641b000 "./nvidia.ko", priv=0xc63ea028, ops=0xc02f5bc8) at /usr/build/src/sys/kern/kern_linker.c:369 #5 0xc016a773 in link_elf_load_module (filename=0xc641b000 "./nvidia.ko", result=0xc83efc7c) at /usr/build/src/sys/kern/link_elf.c:604 #6 0xc01684e0 in linker_load_file (filename=0xc641b000 "./nvidia.ko", result=0xc83efca8) at /usr/build/src/sys/kern/kern_linker.c:272 #7 0xc016871c in sys_kldload (uap=0xc83efcf0) at /usr/build/src/sys/kern/kern_linker.c:724 the problem seems to be that M_LINKER already used 10% of all memory (allegedly). In this case kmalloc() simply panics if passing M_WAITOK without M_NULLOK. This is quite unfortunate. Shouldn't we try to stay alive and print a warning and block, hoping that the problem will resolve itself? cheers simon