Messages in this thread | | | Subject | Re: [PATCH V2 0/3] mm/debug: Add more arch page table helper tests | From | Christophe Leroy <> | Date | Thu, 26 Mar 2020 16:23:58 +0100 |
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Le 26/03/2020 à 03:23, Anshuman Khandual a écrit : > > > On 03/24/2020 10:52 AM, Anshuman Khandual wrote: >> This series adds more arch page table helper tests. The new tests here are >> either related to core memory functions and advanced arch pgtable helpers. >> This also creates a documentation file enlisting all expected semantics as >> suggested by Mike Rapoport (https://lkml.org/lkml/2020/1/30/40). >> >> This series has been tested on arm64 and x86 platforms. > > If folks can test these patches out on remaining ARCH_HAS_DEBUG_VM_PGTABLE > enabled platforms i.e s390, arc, powerpc (32 and 64), that will be really > appreciated. Thank you. >
On powerpc 8xx (PPC32), I get:
[ 53.338368] debug_vm_pgtable: debug_vm_pgtable: Validating architecture page table helpers [ 53.347403] ------------[ cut here ]------------ [ 53.351832] WARNING: CPU: 0 PID: 1 at mm/debug_vm_pgtable.c:647 debug_vm_pgtable+0x280/0x3f4 [ 53.360140] CPU: 0 PID: 1 Comm: swapper Not tainted 5.6.0-rc7-s3k-dev-01090-g92710e99881f #3544 [ 53.368718] NIP: c0777c04 LR: c0777bb8 CTR: 00000000 [ 53.373720] REGS: c9023df0 TRAP: 0700 Not tainted (5.6.0-rc7-s3k-dev-01090-g92710e99881f) [ 53.382042] MSR: 00029032 <EE,ME,IR,DR,RI> CR: 22000222 XER: 20000000 [ 53.388667] [ 53.388667] GPR00: c0777bb8 c9023ea8 c6120000 00000001 1e410000 00000000 00000000 007641c9 [ 53.388667] GPR08: 00000000 00000001 00000000 ffffffff 82000222 00000000 c00039b8 00000000 [ 53.388667] GPR16: 00000000 00000000 00000000 fffffff0 065fc000 1e410000 c6600000 000001e4 [ 53.388667] GPR24: 000001d9 c062d14c c65fc000 c642d448 000006c9 00000000 c65f8000 c65fc040 [ 53.423400] NIP [c0777c04] debug_vm_pgtable+0x280/0x3f4 [ 53.428559] LR [c0777bb8] debug_vm_pgtable+0x234/0x3f4 [ 53.433593] Call Trace: [ 53.436048] [c9023ea8] [c0777bb8] debug_vm_pgtable+0x234/0x3f4 (unreliable) [ 53.442936] [c9023f28] [c00039e0] kernel_init+0x28/0x124 [ 53.448184] [c9023f38] [c000f174] ret_from_kernel_thread+0x14/0x1c [ 53.454245] Instruction dump: [ 53.457180] 41a20008 4bea3ed9 62890021 7d36b92e 7d36b82e 71290fd0 3149ffff 7d2a4910 [ 53.464838] 0f090000 5789077e 3149ffff 7d2a4910 <0f090000> 38c00000 38a00000 38800000 [ 53.472671] ---[ end trace fd5dd92744dc0065 ]--- [ 53.519778] Freeing unused kernel memory: 608K
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