diff options
Diffstat (limited to 'os/log.c')
| -rw-r--r-- | os/log.c | 38 |
1 files changed, 24 insertions, 14 deletions
@@ -467,6 +467,7 @@ LogMessageTypeVerbString(MessageType type, int verb) void LogVMessageVerb(MessageType type, int verb, const char *format, va_list args) { + static unsigned int warned; const char *type_str; char buf[1024]; const size_t size = sizeof(buf); @@ -474,13 +475,17 @@ LogVMessageVerb(MessageType type, int verb, const char *format, va_list args) size_t len = 0; if (inSignalContext) { - BUG_WARN_MSG(inSignalContext, - "Warning: attempting to log data in a signal unsafe " - "manner while in signal context. Please update to check " - "inSignalContext and/or use LogMessageVerbSigSafe() or " - "ErrorFSigSafe(). The offending log format message is:\n" - "%s\n", format); - return; + if (warned < 3) { + BUG_WARN_MSG(inSignalContext, + "Warning: attempting to log data in a signal unsafe " + "manner while in signal context.\nPlease update to check " + "inSignalContext and/or use LogMessageVerbSigSafe() or " + "ErrorFSigSafe().\nThe offending log format message is:\n" + "%s\n", format); + warned++; + if (warned == 3) + LogMessageVerbSigSafe(X_WARNING, -1, "Warned %u times about sigsafe logging. Will be quiet now.\n", warned); + } } type_str = LogMessageTypeVerbString(type, verb); @@ -566,6 +571,7 @@ void LogVHdrMessageVerb(MessageType type, int verb, const char *msg_format, va_list msg_args, const char *hdr_format, va_list hdr_args) { + static unsigned int warned; const char *type_str; char buf[1024]; const size_t size = sizeof(buf); @@ -573,13 +579,17 @@ LogVHdrMessageVerb(MessageType type, int verb, const char *msg_format, size_t len = 0; if (inSignalContext) { - BUG_WARN_MSG(inSignalContext, - "Warning: attempting to log data in a signal unsafe " - "manner while in signal context. Please update to check " - "inSignalContext and/or use LogMessageVerbSigSafe(). The " - "offending header and log message formats are:\n%s %s\n", - hdr_format, msg_format); - return; + if (warned < 3) { + BUG_WARN_MSG(inSignalContext, + "Warning: attempting to log data in a signal unsafe " + "manner while in signal context.\nPlease update to check " + "inSignalContext and/or use LogMessageVerbSigSafe().\nThe " + "offending header and log message formats are:\n%s %s\n", + hdr_format, msg_format); + warned++; + if (warned == 3) + LogMessageVerbSigSafe(X_WARNING, -1, "Warned %u times about sigsafe logging. Will be quiet now.\n", warned); + } } type_str = LogMessageTypeVerbString(type, verb); |