# git rev-parse -q --verify e310e405015f48d18684d89aa27f8c7536b51268^{commit}
e310e405015f48d18684d89aa27f8c7536b51268
already have revision, skipping fetch
# git checkout -q -f -B kisskb e310e405015f48d18684d89aa27f8c7536b51268
# git clean -qxdf
# < git log -1
# commit e310e405015f48d18684d89aa27f8c7536b51268
# Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
# Date:   Sun Aug 19 22:38:32 2018 +0530
# 
#     powerpc/pseries: Dump the SLB contents on SLB MCE errors.
#     
#     If we get a machine check exceptions due to SLB errors then dump the
#     current SLB contents which will be very much helpful in debugging the
#     root cause of SLB errors. Introduce an exclusive buffer per cpu to hold
#     faulty SLB entries. In real mode mce handler saves the old SLB contents
#     into this buffer accessible through paca and print it out later in virtual
#     mode.
#     
#     With this patch the console will log SLB contents like below on SLB MCE
#     errors:
#     
#     [  507.297236] SLB contents of cpu 0x1
#     [  507.297237] Last SLB entry inserted at slot 16
#     [  507.297238] 00 c000000008000000 400ea1b217000500
#     [  507.297239]   1T  ESID=   c00000  VSID=      ea1b217 LLP:100
#     [  507.297240] 01 d000000008000000 400d43642f000510
#     [  507.297242]   1T  ESID=   d00000  VSID=      d43642f LLP:110
#     [  507.297243] 11 f000000008000000 400a86c85f000500
#     [  507.297244]   1T  ESID=   f00000  VSID=      a86c85f LLP:100
#     [  507.297245] 12 00007f0008000000 4008119624000d90
#     [  507.297246]   1T  ESID=       7f  VSID=      8119624 LLP:110
#     [  507.297247] 13 0000000018000000 00092885f5150d90
#     [  507.297247]  256M ESID=        1  VSID=   92885f5150 LLP:110
#     [  507.297248] 14 0000010008000000 4009e7cb50000d90
#     [  507.297249]   1T  ESID=        1  VSID=      9e7cb50 LLP:110
#     [  507.297250] 15 d000000008000000 400d43642f000510
#     [  507.297251]   1T  ESID=   d00000  VSID=      d43642f LLP:110
#     [  507.297252] 16 d000000008000000 400d43642f000510
#     [  507.297253]   1T  ESID=   d00000  VSID=      d43642f LLP:110
#     [  507.297253] ----------------------------------
#     [  507.297254] SLB cache ptr value = 3
#     [  507.297254] Valid SLB cache entries:
#     [  507.297255] 00 EA[0-35]=    7f000
#     [  507.297256] 01 EA[0-35]=        1
#     [  507.297257] 02 EA[0-35]=     1000
#     [  507.297257] Rest of SLB cache entries:
#     [  507.297258] 03 EA[0-35]=    7f000
#     [  507.297258] 04 EA[0-35]=        1
#     [  507.297259] 05 EA[0-35]=     1000
#     [  507.297260] 06 EA[0-35]=       12
#     [  507.297260] 07 EA[0-35]=    7f000
#     
#     Suggested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
#     Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
#     Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
#     Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/hppa-linux/bin/hppa-linux-gcc --version
# < git log --format=%s --max-count=1 e310e405015f48d18684d89aa27f8c7536b51268
# < make -s -j 48 ARCH=parisc O=/kisskb/build/powerpc-next_parisc-defconfig_parisc CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/hppa-linux/bin/hppa-linux-  defconfig
# make -s -j 48 ARCH=parisc O=/kisskb/build/powerpc-next_parisc-defconfig_parisc CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/hppa-linux/bin/hppa-linux-  
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
In function 'kernfs_get_target_path',
    inlined from 'kernfs_getlink.isra.0' at /kisskb/src/fs/kernfs/symlink.c:109:10,
    inlined from 'kernfs_iop_get_link.part.1' at /kisskb/src/fs/kernfs/symlink.c:127:10,
    inlined from 'kernfs_iop_get_link':
/kisskb/src/fs/kernfs/symlink.c:91:3: warning: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
   strncpy(s + len, kn->name, slen);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/fs/kernfs/symlink.c: In function 'kernfs_iop_get_link':
/kisskb/src/fs/kernfs/symlink.c:88:14: note: length computed here
   int slen = strlen(kn->name);
              ^~~~~~~~~~~~~~~~
/kisskb/src/crypto/ablkcipher.c: In function 'crypto_ablkcipher_report':
/kisskb/src/crypto/ablkcipher.c:374:2: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation]
  strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<default>",
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   sizeof(rblkcipher.geniv));
   ~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/crypto/ablkcipher.c: In function 'crypto_givcipher_report':
/kisskb/src/crypto/ablkcipher.c:448:2: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation]
  strncpy(rblkcipher.geniv, alg->cra_ablkcipher.geniv ?: "<built-in>",
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   sizeof(rblkcipher.geniv));
   ~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/crypto/blkcipher.c: In function 'crypto_blkcipher_report':
/kisskb/src/crypto/blkcipher.c:513:2: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation]
  strncpy(rblkcipher.geniv, alg->cra_blkcipher.geniv ?: "<default>",
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   sizeof(rblkcipher.geniv));
   ~~~~~~~~~~~~~~~~~~~~~~~~~
In function 'fill_kobj_path',
    inlined from 'kobject_get_path' at /kisskb/src/lib/kobject.c:155:2:
/kisskb/src/lib/kobject.c:128:3: warning: 'strncpy' output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
   strncpy(path + length, kobject_name(parent), cur);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/lib/kobject.c: In function 'kobject_get_path':
/kisskb/src/lib/kobject.c:125:13: note: length computed here
   int cur = strlen(kobject_name(parent));
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/fs/ext4/super.c: In function '__save_error_info.isra.5':
/kisskb/src/fs/ext4/super.c:326:2: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
  strncpy(es->s_last_error_func, func, sizeof(es->s_last_error_func));
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/fs/ext4/super.c:330:3: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
   strncpy(es->s_first_error_func, func,
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    sizeof(es->s_first_error_func));
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/scripts/unifdef.c: In function 'Mpass':
/kisskb/src/scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation]
 static void Mpass (void) { strncpy(keyword, "if  ", 4); Pelif(); }
                            ^~~~~~~~~~~~~~~~~~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/powerpc-next_parisc-defconfig_parisc
# Build took: 0:01:05.585743