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powerpc/mce: save ignore_event flag unconditionally for UE
When we hit an UE while using machine check safe copy routines, ignore_event flag is set and the event is ignored by mce handler, And the flag is also saved for defered handling and printing of mce event information, But as of now saving of this flag is done on checking if the effective address is provided or physical address is calculated, which is not right. Save ignore_event flag regardless of whether the effective address is provided or physical address is calculated. Without this change following log is seen, when the event is to be ignored. [ 512.971365] MCE: CPU1: machine check (Severe) UE Load/Store [Recovered] [ 512.971509] MCE: CPU1: NIP: [c0000000000b67c0] memcpy+0x40/0x90 [ 512.971655] MCE: CPU1: Initiator CPU [ 512.971739] MCE: CPU1: Unknown [ 512.972209] MCE: CPU1: machine check (Severe) UE Load/Store [Recovered] [ 512.972334] MCE: CPU1: NIP: [c0000000000b6808] memcpy+0x88/0x90 [ 512.972456] MCE: CPU1: Initiator CPU [ 512.972534] MCE: CPU1: Unknown Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com> Reviewed-by: Santosh Sivaraj <santosh@fossix.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210407045816.352276-1-ganeshgr@linux.ibm.com
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1 changed files with 2 additions and 1 deletions
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@ -131,6 +131,8 @@ void save_mce_event(struct pt_regs *regs, long handled,
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* Populate the mce error_type and type-specific error_type.
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*/
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mce_set_error_info(mce, mce_err);
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if (mce->error_type == MCE_ERROR_TYPE_UE)
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mce->u.ue_error.ignore_event = mce_err->ignore_event;
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if (!addr)
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return;
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@ -159,7 +161,6 @@ void save_mce_event(struct pt_regs *regs, long handled,
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if (phys_addr != ULONG_MAX) {
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mce->u.ue_error.physical_address_provided = true;
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mce->u.ue_error.physical_address = phys_addr;
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mce->u.ue_error.ignore_event = mce_err->ignore_event;
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machine_check_ue_event(mce);
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}
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}
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