- Revert commit 938382b60a since it changes semantics on some

public APIs
  105dace2-revert-virProcessGetStatInfo.patch

OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=920

0001-Extract-stats-functions-from-the-qemu-driver.patch

@@ -241,7 +241,7 @@ Index: libvirt-8.0.0/src/qemu/qemu_driver.c
  #include "domain_audit.h"
  #include "domain_cgroup.h"
  #include "domain_driver.h"
-@@ -17407,13 +17408,7 @@ qemuDomainGetStatsState(virQEMUDriver *d
+@@ -17412,13 +17413,7 @@ qemuDomainGetStatsState(virQEMUDriver *d
                          virTypedParamList *params,
                          unsigned int privflags G_GNUC_UNUSED)
  {
@@ -256,7 +256,7 @@ Index: libvirt-8.0.0/src/qemu/qemu_driver.c
  }
  
  
-@@ -17705,25 +17700,11 @@ qemuDomainGetStatsCpuCgroup(virDomainObj
+@@ -17710,25 +17705,11 @@ qemuDomainGetStatsCpuCgroup(virDomainObj
                              virTypedParamList *params)
  {
      qemuDomainObjPrivate *priv = dom->privateData;
@@ -283,7 +283,7 @@ Index: libvirt-8.0.0/src/qemu/qemu_driver.c
  }
  
  static int
-@@ -17916,76 +17897,15 @@ qemuDomainGetStatsVcpu(virQEMUDriver *dr
+@@ -17921,76 +17902,15 @@ qemuDomainGetStatsVcpu(virQEMUDriver *dr
      return ret;
  }
  

105dace2-revert-virProcessGetStatInfo.patch

@@ -0,0 +1,92 @@
+commit 105dace22cc7b5b18d72a4dcad4a2cf386ce5c99
+Author: Michal Prívozník <mprivozn@redhat.com>
+Date:   Tue Jan 18 12:40:09 2022 +0100
+
+    Revert "report error when virProcessGetStatInfo() is unable to parse data"
+    
+    This reverts commit 938382b60ae5bd1f83b5cb09e1ce68b9a88f679a.
+    
+    Turns out, the commit did more harm than good. It changed
+    semantics on some public APIs. For instance, while
+    qemuDomainGetInfo() previously did not returned an error it does
+    now. While the calls to virProcessGetStatInfo() is guarded with
+    virDomainObjIsActive() it doesn't necessarily mean that QEMU's
+    PID is still alive. QEMU might be gone but we just haven't
+    realized it (e.g. because the eof handler thread is waiting for a
+    job).
+    
+    Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2041610
+    Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
+    Reviewed-by: Andrea Bolognani <abologna@redhat.com>
+
+Index: libvirt-8.0.0/src/ch/ch_driver.c
+===================================================================
+--- libvirt-8.0.0.orig/src/ch/ch_driver.c
++++ libvirt-8.0.0/src/ch/ch_driver.c
+@@ -1073,6 +1073,8 @@ chDomainHelperGetVcpus(virDomainObj *vm,
+             if (virProcessGetStatInfo(&vcpuinfo->cpuTime,
+                                       &vcpuinfo->cpu, NULL,
+                                       vm->pid, vcpupid) < 0) {
++                virReportSystemError(errno, "%s",
++                                      _("cannot get vCPU placement & pCPU time"));
+                 return -1;
+             }
+         }
+Index: libvirt-8.0.0/src/qemu/qemu_driver.c
+===================================================================
+--- libvirt-8.0.0.orig/src/qemu/qemu_driver.c
++++ libvirt-8.0.0/src/qemu/qemu_driver.c
+@@ -1359,6 +1359,8 @@ qemuDomainHelperGetVcpus(virDomainObj *v
+             if (virProcessGetStatInfo(&vcpuinfo->cpuTime,
+                                       &vcpuinfo->cpu, NULL,
+                                       vm->pid, vcpupid) < 0) {
++                virReportSystemError(errno, "%s",
++                                     _("cannot get vCPU placement & pCPU time"));
+                 return -1;
+             }
+         }
+@@ -2519,6 +2521,8 @@ qemuDomainGetInfo(virDomainPtr dom,
+     if (virDomainObjIsActive(vm)) {
+         if (virProcessGetStatInfo(&(info->cpuTime), NULL, NULL,
+                                   vm->pid, 0) < 0) {
++            virReportError(VIR_ERR_OPERATION_FAILED, "%s",
++                           _("cannot read cputime for domain"));
+             goto cleanup;
+         }
+     }
+@@ -10526,7 +10530,8 @@ qemuDomainMemoryStatsInternal(virQEMUDri
+     }
+ 
+     if (virProcessGetStatInfo(NULL, NULL, &rss, vm->pid, 0) < 0) {
+-        virResetLastError();
++        virReportError(VIR_ERR_OPERATION_FAILED, "%s",
++                       _("cannot get RSS for domain"));
+     } else {
+         stats[ret].tag = VIR_DOMAIN_MEMORY_STAT_RSS;
+         stats[ret].val = rss;
+Index: libvirt-8.0.0/src/util/virprocess.c
+===================================================================
+--- libvirt-8.0.0.orig/src/util/virprocess.c
++++ libvirt-8.0.0/src/util/virprocess.c
+@@ -1784,10 +1784,7 @@ virProcessGetStatInfo(unsigned long long
+         virStrToLong_ullp(proc_stat[VIR_PROCESS_STAT_STIME], NULL, 10, &systime) < 0 ||
+         virStrToLong_l(proc_stat[VIR_PROCESS_STAT_RSS], NULL, 10, &rss) < 0 ||
+         virStrToLong_i(proc_stat[VIR_PROCESS_STAT_PROCESSOR], NULL, 10, &cpu) < 0) {
+-        virReportError(VIR_ERR_INTERNAL_ERROR,
+-                       _("cannot parse process status data for pid '%d/%d'"),
+-                       (int) pid, (int) tid);
+-        return -1;
++        VIR_WARN("cannot parse process status data");
+     }
+ 
+     /* We got jiffies
+@@ -1884,8 +1881,7 @@ virProcessGetStatInfo(unsigned long long
+                       pid_t pid G_GNUC_UNUSED,
+                       pid_t tid G_GNUC_UNUSED)
+ {
+-    virReportSystemError(ENOSYS, "%s",
+-                         _("Process statistics data is not supported on this platform"));
++    errno = ENOSYS;
+     return -1;
+ }
+ 

libvirt.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Jan 26 19:13:24 UTC 2022 - James Fehlig <jfehlig@suse.com>
+
+- Revert commit 938382b60a since it changes semantics on some
+  public APIs
+  105dace2-revert-virProcessGetStatInfo.patch
+
 -------------------------------------------------------------------
 Tue Jan 25 16:26:42 UTC 2022 - James Fehlig <jfehlig@suse.com>
 

libvirt.spec

@@ -305,6 +305,7 @@ Patch0:         3be5ba11-libvirt-guests-install.patch
 Patch1:         16172741-libvirt-guests-manpage.patch
 Patch2:         8eb44616-remove-sysconfig-files.patch
 Patch3:         31e937fb-libxl-save-lock-indicator.patch
+Patch4:         105dace2-revert-virProcessGetStatInfo.patch
 # Patches pending upstream review
 Patch100:       libxl-dom-reset.patch
 Patch101:       network-don-t-use-dhcp-authoritative-on-static-netwo.patch