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Fix SIGSEGV with query-stats-schema.

Browse Source 
This allows management tools to query the statistics schemas without
 worrying that some versions of QEMU will crash.
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Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

Fix SIGSEGV with query-stats-schema.

This allows management tools to query the statistics schemas without
worrying that some versions of QEMU will crash.

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# gpg: Signature made Fri 19 Aug 2022 02:11:57 AM PDT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [undefined]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [undefined]
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* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  kvm: fix segfault with query-stats-schemas and -M none

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-08-19 07:42:37 -07:00
commit a78241a62b
1 changed files with 5 additions and 3 deletions
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8
accel/kvm/kvm-all.c
View File

@ -4131,7 +4131,9 @@ void query_stats_schemas_cb(StatsSchemaList **result, Error **errp)
query_stats_schema(result, STATS_TARGET_VM, stats_fd, errp);
close(stats_fd);
stats_args.result.schema = result;
stats_args.errp = errp;
run_on_cpu(first_cpu, query_stats_schema_vcpu, RUN_ON_CPU_HOST_PTR(&stats_args));
if (first_cpu) {
stats_args.result.schema = result;
stats_args.errp = errp;
run_on_cpu(first_cpu, query_stats_schema_vcpu, RUN_ON_CPU_HOST_PTR(&stats_args));
}
}