dump_guest_memory: Increase timeout for large vmcore dumps

Increase dump timeout from 90s to 1800s (30 minutes) to handle large
vmcore files (~132GB). The original timeout was too short for VMs with
126GB memory, causing truncated vmcore files.
With 30-minute timeout, even at 75MB/s disk I/O speed, 132GB dumps
should complete successfully.

Signed-off-by: wji <[email protected]>

Author: heywji

qemu/tests/cfg/dump_guest_memory.cfg

@@ -4,7 +4,7 @@
     no Windows
     monitors = 'qmp1'
     monitor_type_qmp1 = qmp
-    dump_file_timeout = 90
+    dump_file_timeout = 1800
     dump_file = "/home/dump"
     crash_script = "/home/crash.cmd"
     x86_64, aarch64:

qemu/tests/dump_guest_core.py

@@ -45,7 +45,7 @@ def check_core_file(arch):
             % (dump_guest_memory_file, vmcore_file, arch, gdb_command_file)
         )
         process.run(command, shell=True)
-        status, output = process.getstatusoutput(gdb_command, timeout=360)
+        status, output = process.getstatusoutput(gdb_command, timeout=1800)
         os.remove(gdb_command_file)
         os.remove(core_file)
         test.log.debug(output)
@@ -62,7 +62,7 @@ def check_vmcore_file():
         process.run(
             'echo -e "bt\ntask 0\ntask 1\nquit" > %s' % crash_script, shell=True
         )
-        output = process.getoutput(crash_cmd, timeout=60)
+        output = process.getoutput(crash_cmd, timeout=1800)
         os.remove(crash_script)
         os.remove(vmcore_file)
         test.log.debug(output)
@@ -113,5 +113,5 @@ def check_vmcore_file():
         check_core_file(arch)
         if dump_guest_core == "on" and check_vmcore == "yes":
             crash_cmd %= host_kernel_version
-            utils_misc.wait_for(lambda: os.path.exists(vmcore_file), timeout=60)
+            utils_misc.wait_for(lambda: os.path.exists(vmcore_file), timeout=1800)
             check_vmcore_file()

qemu/tests/dump_guest_memory.py

@@ -157,7 +157,7 @@ def check_dump_file():
         crash_cmd = "crash -i %s /usr/lib/debug/lib/modules/%s/vmlinux "
         crash_cmd %= (crash_script, host_kernel_version)
         crash_cmd += dump_file
-        status, output = process.getstatusoutput(crash_cmd)
+        status, output = process.getstatusoutput(crash_cmd, timeout=1800)
         os.remove(crash_script)
         test.log.debug(output)
         if status != 0 or "error" in output: