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From: Eduard Zingerman <eddyz87@gmail.com>
To: dwarves@vger.kernel.org, arnaldo.melo@gmail.com
Cc: bpf@vger.kernel.org, kernel-team@fb.com, ast@kernel.org,
	daniel@iogearbox.net,  andrii@kernel.org, yhs@fb.com,
	jemarch@gnu.org, david.faust@oracle.com,  mykolal@fb.com
Subject: Re: [PATCH v3 dwarves 0/6] Support for new btf_type_tag encoding
Date: Fri, 26 May 2023 03:06:28 +0300	[thread overview]
Message-ID: <36e7531791a2b9d0513e5a883acdad0930260d73.camel@gmail.com> (raw)
In-Reply-To: <85637acda6983eac1787abbb07ef18c618b4193b.camel@gmail.com>

On Thu, 2023-05-25 at 03:13 +0300, Eduard Zingerman wrote:
[...]
> +static void test_delete()
> +{
> +	struct rb_node *next = rb_first(&test_tree);
> +
> +	while (next) {
> +		struct test_struct *pos = rb_entry(next, struct test_struct, rb_node);
> +		next = rb_next(&pos->rb_node);
> +		rb_erase(&pos->rb_node, &structures__tree);
                                        ^^^^^^^
                                        Should be &test_tree

I made a mistake in this test code.
When correct tree is passed to rb_erase() test passes w/o segfaults.
The original issue is caused by the same 'struct structures' instance
being added to an rb_tree twice, posted a separate patch with a fix to
the mailing list.

> +	}
> +}
[...]

      reply	other threads:[~2023-05-26  0:07 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-24  0:18 [PATCH v3 dwarves 0/6] Support for new btf_type_tag encoding Eduard Zingerman
2023-05-24  0:18 ` [PATCH v3 dwarves 1/6] dwarves.h: expose ptr_table interface Eduard Zingerman
2023-05-24  0:18 ` [PATCH v3 dwarves 2/6] dwarf_loader: Track unspecified types in a separate list Eduard Zingerman
2023-05-24  0:18 ` [PATCH v3 dwarves 3/6] dwarf_loader: handle btf_type_tag w/o special pointer type Eduard Zingerman
2023-05-24  0:18 ` [PATCH v3 dwarves 4/6] dwarf_loader: support btf:type_tag DW_TAG_LLVM_annotation Eduard Zingerman
2023-05-24  0:18 ` [PATCH v3 dwarves 5/6] dwarf_loader: move type tags before CVR qualifiers when necessary Eduard Zingerman
2023-05-24  0:18 ` [PATCH v3 dwarves 6/6] btf_encoder: skip type tags for VAR entry types Eduard Zingerman
2023-05-25  0:13 ` [PATCH v3 dwarves 0/6] Support for new btf_type_tag encoding Eduard Zingerman
2023-05-26  0:06   ` Eduard Zingerman [this message]

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