c9e3b69dfc
resolves: RHEL-81733 Include host kernel information in libguestfs debugging output resolves: RHEL-83026
49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
From a2bd2c18940c8779da87737c9811ca0b63e96dde Mon Sep 17 00:00:00 2001
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From: "Richard W.M. Jones" <rjones@redhat.com>
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Date: Mon, 10 Mar 2025 18:52:08 +0000
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Subject: [PATCH] lib: Print kernel utsname in debug output
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Useful for debugging problems caused by the host kernel. In
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particular we were looking at a problem with passt creating a user
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namespace but didn't know what exact kernel was being used.
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(cherry picked from commit 31fa712aa07190f2c5ed789712b92b4be2d51488)
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---
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lib/launch.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/lib/launch.c b/lib/launch.c
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index ddf303a66..495b0c65d 100644
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--- a/lib/launch.c
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+++ b/lib/launch.c
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@@ -36,6 +36,7 @@
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#include <signal.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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+#include <sys/utsname.h>
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#include <sys/wait.h>
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#include <errno.h>
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#include <assert.h>
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@@ -93,6 +94,7 @@ guestfs_impl_launch (guestfs_h *g)
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struct backend *b;
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CLEANUP_FREE char *backend = guestfs_get_backend (g);
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int mask;
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+ struct utsname utsname;
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debug (g, "launch: program=%s", g->program);
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if (STRNEQ (g->identifier, ""))
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@@ -109,6 +111,10 @@ guestfs_impl_launch (guestfs_h *g)
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if (mask >= 0)
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debug (g, "launch: umask=0%03o", (unsigned) mask);
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debug (g, "launch: euid=%ju", (uintmax_t) geteuid ());
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+ if (uname (&utsname) == 0)
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+ debug (g, "launch: host: %s %s %s %s %s",
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+ utsname.sysname, utsname.nodename, utsname.release,
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+ utsname.version, utsname.machine);
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}
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/* Launch the appliance. */
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--
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2.47.1
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