• Yazen Ghannam's avatar
    EDAC, mce_amd: Print IPID and Syndrome on a separate line · 75bf2f64
    Yazen Ghannam authored
    Currently, the IPID and Syndrome are printed on the same line as the
    Address. There are cases when we can have a valid Syndrome but not a
    valid Address.
    
    For example, the MCA_SYND register can be used to hold more detailed
    error info that the hardware folks can use. It's not just DRAM ECC
    syndromes. There are some error types that aren't related to memory that
    may have valid syndromes, like some errors related to links in the Data
    Fabric, etc.
    
    In these cases, the IPID and Syndrome are not printed at the same log
    level as the rest of the stanza, so users won't see them on the console.
    
    Console:
      [Hardware Error]: CPU:16 (17:1:0) MC22_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd82000000002080b
      [Hardware Error]: Power, Interrupts, etc. Extended Error Code: 2
    
    Dmesg:
      [Hardware Error]: CPU:16 (17:1:0) MC22_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd82000000002080b
      , Syndrome: 0x000000010b404000, IPID: 0x0001002e00000002
      [Hardware Error]: Power, Interrupts, etc. Extended Error Code: 2
    
    Print the IPID first and on a new line. The IPID should always be
    printed on SMCA systems. The Syndrome will then be printed with the IPID
    and at the same log level when valid:
    
      [Hardware Error]: CPU:16 (17:1:0) MC22_STATUS[Over|CE|MiscV|-|-|-|-|SyndV|-]: 0xd82000000002080b
      [Hardware Error]: IPID: 0x0001002e00000002, Syndrome: 0x000000010b404000
      [Hardware Error]: Power, Interrupts, etc. Extended Error Code: 2
    Signed-off-by: default avatarYazen Ghannam <Yazen.Ghannam@amd.com>
    Cc: linux-edac <linux-edac@vger.kernel.org>
    Link: http://lkml.kernel.org/r/1487192182-2474-1-git-send-email-Yazen.Ghannam@amd.comSigned-off-by: default avatarBorislav Petkov <bp@suse.de>
    75bf2f64
mce_amd.c 24.6 KB