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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2010-05-14 14:39:13 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2010-05-14 14:39:13 +0200 |
| commit | 8978c64d55e470bdc89523561bdc12a9e71183a9 (patch) | |
| tree | 85ee2838df6b4ca2e4df0a6ee0cd68c5ab996f4b | |
| parent | ec49d131847ccd6a4e1bf4d7b98c6a2999052efd (diff) | |
| download | abrt-8978c64d55e470bdc89523561bdc12a9e71183a9.tar.gz abrt-8978c64d55e470bdc89523561bdc12a9e71183a9.tar.xz abrt-8978c64d55e470bdc89523561bdc12a9e71183a9.zip | |
improve kerneloops hash
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | lib/Plugins/Kerneloops.cpp | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/lib/Plugins/Kerneloops.cpp b/lib/Plugins/Kerneloops.cpp index 413e1912..69f6a9a5 100644 --- a/lib/Plugins/Kerneloops.cpp +++ b/lib/Plugins/Kerneloops.cpp @@ -28,8 +28,26 @@ static unsigned hash_oops_str(const char *oops_ptr) unsigned char old_c; unsigned char c = 0; unsigned hash = 0; - while (1) - { + + /* Special-case: if the first line is of form: + * WARNING: at net/wireless/core.c:614 wdev_cleanup_work+0xe9/0x120 [cfg80211]() (Not tainted) + * then hash only "file:line func+ofs/len" part. + */ + if (strncmp(oops_ptr, "WARNING: at ", sizeof("WARNING: at ")-1) == 0) { + const char *p = oops_ptr + sizeof("WARNING: at ")-1; + p = strchr(p, ' '); /* skip filename:NNN */ + if (p) { + p = strchrnul(p + 1, ' '); /* skip function_name+0xNN/0xNNN */ + oops_ptr += sizeof("WARNING: at ")-1; + while (oops_ptr < p) { + c = *oops_ptr++; + hash = ((hash << 5) ^ (hash >> 27)) ^ c; + } + return hash; + } + } + + while (1) { old_c = c; c = *oops_ptr++; if (!c) |