bf3e3feba0
public APIs 105dace2-revert-virProcessGetStatInfo.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/libvirt?expand=0&rev=920
93 lines
4.0 KiB
Diff
93 lines
4.0 KiB
Diff
commit 105dace22cc7b5b18d72a4dcad4a2cf386ce5c99
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Author: Michal Prívozník <mprivozn@redhat.com>
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Date: Tue Jan 18 12:40:09 2022 +0100
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Revert "report error when virProcessGetStatInfo() is unable to parse data"
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This reverts commit 938382b60ae5bd1f83b5cb09e1ce68b9a88f679a.
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Turns out, the commit did more harm than good. It changed
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semantics on some public APIs. For instance, while
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qemuDomainGetInfo() previously did not returned an error it does
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now. While the calls to virProcessGetStatInfo() is guarded with
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virDomainObjIsActive() it doesn't necessarily mean that QEMU's
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PID is still alive. QEMU might be gone but we just haven't
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realized it (e.g. because the eof handler thread is waiting for a
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job).
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2041610
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Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
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Reviewed-by: Andrea Bolognani <abologna@redhat.com>
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Index: libvirt-8.0.0/src/ch/ch_driver.c
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===================================================================
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--- libvirt-8.0.0.orig/src/ch/ch_driver.c
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+++ libvirt-8.0.0/src/ch/ch_driver.c
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@@ -1073,6 +1073,8 @@ chDomainHelperGetVcpus(virDomainObj *vm,
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if (virProcessGetStatInfo(&vcpuinfo->cpuTime,
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&vcpuinfo->cpu, NULL,
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vm->pid, vcpupid) < 0) {
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+ virReportSystemError(errno, "%s",
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+ _("cannot get vCPU placement & pCPU time"));
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return -1;
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}
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}
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Index: libvirt-8.0.0/src/qemu/qemu_driver.c
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===================================================================
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--- libvirt-8.0.0.orig/src/qemu/qemu_driver.c
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+++ libvirt-8.0.0/src/qemu/qemu_driver.c
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@@ -1359,6 +1359,8 @@ qemuDomainHelperGetVcpus(virDomainObj *v
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if (virProcessGetStatInfo(&vcpuinfo->cpuTime,
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&vcpuinfo->cpu, NULL,
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vm->pid, vcpupid) < 0) {
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+ virReportSystemError(errno, "%s",
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+ _("cannot get vCPU placement & pCPU time"));
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return -1;
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}
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}
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@@ -2519,6 +2521,8 @@ qemuDomainGetInfo(virDomainPtr dom,
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if (virDomainObjIsActive(vm)) {
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if (virProcessGetStatInfo(&(info->cpuTime), NULL, NULL,
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vm->pid, 0) < 0) {
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+ virReportError(VIR_ERR_OPERATION_FAILED, "%s",
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+ _("cannot read cputime for domain"));
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goto cleanup;
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}
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}
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@@ -10526,7 +10530,8 @@ qemuDomainMemoryStatsInternal(virQEMUDri
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}
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if (virProcessGetStatInfo(NULL, NULL, &rss, vm->pid, 0) < 0) {
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- virResetLastError();
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+ virReportError(VIR_ERR_OPERATION_FAILED, "%s",
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+ _("cannot get RSS for domain"));
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} else {
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stats[ret].tag = VIR_DOMAIN_MEMORY_STAT_RSS;
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stats[ret].val = rss;
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Index: libvirt-8.0.0/src/util/virprocess.c
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===================================================================
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--- libvirt-8.0.0.orig/src/util/virprocess.c
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+++ libvirt-8.0.0/src/util/virprocess.c
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@@ -1784,10 +1784,7 @@ virProcessGetStatInfo(unsigned long long
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virStrToLong_ullp(proc_stat[VIR_PROCESS_STAT_STIME], NULL, 10, &systime) < 0 ||
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virStrToLong_l(proc_stat[VIR_PROCESS_STAT_RSS], NULL, 10, &rss) < 0 ||
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virStrToLong_i(proc_stat[VIR_PROCESS_STAT_PROCESSOR], NULL, 10, &cpu) < 0) {
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- virReportError(VIR_ERR_INTERNAL_ERROR,
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- _("cannot parse process status data for pid '%d/%d'"),
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- (int) pid, (int) tid);
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- return -1;
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+ VIR_WARN("cannot parse process status data");
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}
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/* We got jiffies
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@@ -1884,8 +1881,7 @@ virProcessGetStatInfo(unsigned long long
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pid_t pid G_GNUC_UNUSED,
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pid_t tid G_GNUC_UNUSED)
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{
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- virReportSystemError(ENOSYS, "%s",
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- _("Process statistics data is not supported on this platform"));
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+ errno = ENOSYS;
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return -1;
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}
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