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Handle new crashkernel= syntax in firstboot 

Resolves: bz805782

Port from below patch from rhel:
commit 6a6816e97fccaf7805ba9d04fcb3f58d87bd2517
Author: amwang <amwang@redhat.com>
Date:   Fri Feb 11 06:53:27 2011 +0000

    Resolves: bug 676758.

Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
Dave Young 2012-08-09 10:22:49 +08:00
parent a3ee4fffe0
commit dfb10612a2
1 changed files with 6 additions and 3 deletions
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9
firstboot_kdump.py
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@ -147,7 +147,6 @@ class moduleClass(Module):
# Fix up memory calculations if kdump is already on
cmdLine = open("/proc/cmdline").read()
self.kdumpMem = 0
self.kdumpOffset = 0
self.origCrashKernel = ""
self.kdumpEnabled = False
@ -155,7 +154,11 @@ class moduleClass(Module):
if chkConfigStatus.find("enabled") > -1:
self.kdumpEnabled = True
self.kdumpMemInitial = 0
if cmdLine.find("crashkernel") > -1:
kexec_crash_size = open("/sys/kernel/kexec_crash_size").read()
self.kdumpMem = int(kexec_crash_size)/(1024*1024)
if self.kdumpMem != 0:
crashString = filter(lambda t: t.startswith("crashkernel="),
cmdLine.split())[0].split("=")[1]
if self.doDebug:
@ -163,7 +166,6 @@ class moduleClass(Module):
if crashString.find("@") != -1:
(self.kdumpMem, self.kdumpOffset) = [int(m[:-1]) for m in crashString.split("@")]
else:
self.kdumpMem = int(crashString[:-1])
self.kdumpOffset = 0
self.availMem += self.kdumpMem
self.origCrashKernel = "%dM" % (self.kdumpMem)
@ -171,6 +173,7 @@ class moduleClass(Module):
self.kdumpEnabled = True
else:
self.kdumpEnabled = False
self.initialState = self.kdumpEnabled
# Do some sanity-checking and try to present only sane options.