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File _service:download_src_package:0280-koops-Improve-fatal-MCE-check-when-dumping-backtrace.patch of Package abrt
From 69047b8b02d8f7635fe106daac9e17d72d4a8130 Mon Sep 17 00:00:00 2001 From: Julius Milan <jmilan@redhat.com> Date: Mon, 10 Apr 2017 16:30:58 +0200 Subject: [PATCH] koops: Improve fatal MCE check when dumping backtrace Problem was, that regular kernel panic message was treated as fatal MCE, for which we don't want to have backtrace. The logic in koops_extract_oopses_from_lines is a bit complex, so I describe it: If fatal MCE was recognized, dumping of backtrace was skipped by following to the next part of cycle (hacky, in the next part of cycle, there is condition with many allowed strings to continue but not "Call Trace"). The check responsible for this "jump" (kernel.c:396) just checked whether there is a string beginning with "Kernel panic - not syncing", however this string appears in all kernel panics, not just fatal MCEs. Fatal MCE may have form of: "Kernel panic - not syncing: Fatal Machine check" or "Kernel panic - not syncing: Machine check" or I found even "Kernel panic - not syncing: Uncorrected machine check" so I modified the condition appropriately and added test covering this case. Related to rhbz#1374648 --- src/lib/kernel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/lib/kernel.c b/src/lib/kernel.c index 1a9d327..f1a0f2c 100644 --- a/src/lib/kernel.c +++ b/src/lib/kernel.c @@ -356,7 +356,7 @@ next_line: * In order to capture all these lines, we treat final line * as "backtrace" (which is admittedly a hack): */ - if (strstr(curline, "Kernel panic - not syncing")) + if (strstr(curline, "Kernel panic - not syncing:") && strcasestr(curline, "Machine check")) inbacktrace = 1; else if (strnlen(curline, 9) > 8 -- 1.8.3.1
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