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authorChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-06-01 21:35:14 +0200
commit3e4c5a6261770bced301b5e74233e7866166ea5b (patch)
tree9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_missing/host_missing/accel_missing/2589
parente5634e2806195bee44407853c4bf8776f7abfa4f (diff)
downloadqemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz
qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip
clean up repository
Diffstat (limited to 'gitlab/issues_text/target_missing/host_missing/accel_missing/2589')
-rw-r--r--gitlab/issues_text/target_missing/host_missing/accel_missing/258956
1 files changed, 0 insertions, 56 deletions
diff --git a/gitlab/issues_text/target_missing/host_missing/accel_missing/2589 b/gitlab/issues_text/target_missing/host_missing/accel_missing/2589
deleted file mode 100644
index 06c4dbf93..000000000
--- a/gitlab/issues_text/target_missing/host_missing/accel_missing/2589
+++ /dev/null
@@ -1,56 +0,0 @@
-Support guest shutdown of Alpine Linux in guest agent
-Description of problem:
-The qemu-guest-agent's shutdown calls `/sbin/shutdown` with the apropriate flags to shut down a posix system. On Alpine Linux, which is based on busybox, there is no `/sbin/shutdown`, instead there are `/sbin/poweroff`, `/sbin/halt` and `/sbin/reboot`. We have used a downstream patch for years that will exec those as a fallback in case execing `/sbin/shutdown` fails.
-
-With qemu 9.2 this patch no longer applies and it is probably time to solve this properly in upstream qemu.
-
-The question is how?
-
-Some options:
-
-- Set the powerdown, halt and reboot commands via build time configure option
-- Add a fallback if the `execlp` fails (similar to what downstream Alpine's patch does now). We could for example give `ga_run_command` a `const char **argv[]`, and try `execvp` all of them before erroring out.
-- Test the existence of `/sbin/shutdown` before calling `ga_run_command`.
-- Do nothing. Let downstream Alpine Linux handle it.
-Steps to reproduce:
-1. Build qemu-guest-agent for Alpine Linux
-2. boot a Alpine linux VM and install the qemu-guest-agent
-3. Try shutdown the VM via qmp command.
-Additional information:
-The patch that we previously used that no longer applies:
-```diff
-diff --git a/qga/commands-posix.c b/qga/commands-posix.c
-index 954efed01..61427652c 100644
---- a/qga/commands-posix.c
-+++ b/qga/commands-posix.c
-@@ -84,6 +84,7 @@ static void ga_wait_child(pid_t pid, int *status, Error **errp)
- void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
- {
-     const char *shutdown_flag;
-+    const char *fallback_cmd = NULL;
-     Error *local_err = NULL;
-     pid_t pid;
-     int status;
-@@ -101,10 +102,13 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
-     slog("guest-shutdown called, mode: %s", mode);
-     if (!has_mode || strcmp(mode, "powerdown") == 0) {
-         shutdown_flag = powerdown_flag;
-+        fallback_cmd = "/sbin/poweroff";
-     } else if (strcmp(mode, "halt") == 0) {
-         shutdown_flag = halt_flag;
-+        fallback_cmd = "/sbin/halt";
-     } else if (strcmp(mode, "reboot") == 0) {
-         shutdown_flag = reboot_flag;
-+        fallback_cmd = "/sbin/reboot";
-     } else {
-         error_setg(errp,
-                    "mode is invalid (valid values are: halt|powerdown|reboot");
-@@ -125,6 +129,7 @@ void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
- #else
-         execl("/sbin/shutdown", "shutdown", "-h", shutdown_flag, "+0",
-                "hypervisor initiated shutdown", (char *)NULL);
-+        execle(fallback_cmd, fallback_cmd, (char*)NULL, environ);
- #endif
-         _exit(EXIT_FAILURE);
-     } else if (pid < 0) {
-```