Messages in this thread | | | Subject | Re: x86/fpu/xsave: protection key test failures | From | Babu Moger <> | Date | Wed, 26 May 2021 10:25:50 -0500 |
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On 5/25/21 7:20 PM, Dave Hansen wrote: > On 5/25/21 5:03 PM, Babu Moger wrote: >>> What values do PKRU and the shadow have when the test fails? Is PKRU 0? >> It goes back to default value 0x55555554. The test is expecting it to be >> 0. Printed them below. >> >> test_ptrace_of_child()::1346, pkey_reg: 0x0000000055555554 shadow: >> 0000000000000000 >> protection_keys_64: pkey-helpers.h:127: _read_pkey_reg: Assertion >> `pkey_reg == shadow_pkey_reg' failed. > > That's backwards (shadow vs pkru) from what I was expecting. > > Can you turn on all the debuging? > > Just compile with -DDEBUG_LEVEL=5 >
Copied the logs at https://pastebin.com/gtQiHg8Q
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