40 lines
1.2 KiB
Diff
40 lines
1.2 KiB
Diff
From 6722ea102264b54529afc19d347a3a7473670fdd Mon Sep 17 00:00:00 2001
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From: Qianli Zhao <qianli.zhao@horizon.ai>
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Date: Mon, 4 Jul 2022 16:40:01 +0800
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Subject: [PATCH 11/29] arm64: Fix for st->_stext_vmlinux not initialized when
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set VA_BITS_ACTUAL
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Setting st->_stext_vmlinux to UNINITIALIZED to search for "_stext"
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from the vmlinux. In the scenario where kaslr is disabled and
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without vmcoreinfo, crash will get the wrong MODULES/VMALLOC ranges
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and cause a failure in parsing a raw RAM dumpfile.
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Signed-off-by: Qianli Zhao <qianli.zhao@horizon.ai>
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Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
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---
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arm64.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/arm64.c b/arm64.c
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index 0f615cf52bef..b6b7aa11f4fe 100644
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--- a/arm64.c
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+++ b/arm64.c
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@@ -149,6 +149,14 @@ arm64_init(int when)
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ms = machdep->machspec;
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+ /*
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+ * The st->_stext_vmlinux is needed in arm64_init(PRE_GDB) when a
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+ * dumpfile does not have vmcoreinfo and we use -m vabits_actual
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+ * option, e.g. a raw RAM dumpfile.
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+ */
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+ if (ms->VA_BITS_ACTUAL)
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+ st->_stext_vmlinux = UNINITIALIZED;
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+
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if (!ms->kimage_voffset && STREQ(pc->live_memsrc, "/dev/crash"))
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ioctl(pc->mfd, DEV_CRASH_ARCH_DATA, &ms->kimage_voffset);
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--
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2.37.1
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