On Tue, 31 Aug 2021 23:51:51 +1000, Michael Ellerman wrote: > Since the conversion to generic ptdump we see crashes on 64-bit: > > BUG: Unable to handle kernel data access on read at 0xc0eeff7f00000000 > Faulting instruction address: 0xc00000000045e5fc > Oops: Kernel access of bad area, sig: 11 [#1] > ... > NIP __walk_page_range+0x2bc/0xce0 > LR __walk_page_range+0x240/0xce0 > Call Trace: > __walk_page_range+0x240/0xce0 (unreliable) > walk_page_range_novma+0x74/0xb0 > ptdump_walk_pgd+0x98/0x170 > ptdump_check_wx+0x88/0xd0 > mark_rodata_ro+0x48/0x80 > kernel_init+0x74/0x1a0 > ret_from_kernel_thread+0x5c/0x64 > > [...]
Applied to powerpc/next. [1/1] powerpc/ptdump: Fix generic ptdump for 64-bit https://git.kernel.org/powerpc/c/b14b8b1ed0e15b8f43fba9c25654278a31ee3c2f cheers