919e7b5359
Parts of the kobj(9) KPI assume a non-sleepable context for the purpose of internal memory allocations, but currently have no way to signal an allocation failure to the caller, so they just panic in this case. This can occur even when kobj_create() is called with M_WAITOK. Fix some instances of the problem by plumbing wait flags from kobj_create() through internal subroutines. Change kobj_class_compile() to assume a sleepable context when called externally, since all existing callers use it in a sleepable context. To fix the problem fully the kobj_init() KPI must be changed. Reported and tested by: pho Reviewed by: kib (previous version) MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D19023
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