7f72b46110
- Update to 2.8
* Add support for incrementally/partially consumed provided buffers,
usable with the provided buffer ring support.
* Add support for foo_and_wait_min_timeout(), where it's possible to
define a minimum timeout for waiting to get batches of completions,
but if that fails, extend for a longer timeout without having any
extra context switches.
* Add support for using different clock sources for completion waiting.
* Great increase coverage of test cases, test case improvements and
fixes.
* Don't leak _GNU_SOURCE via pkb-config --cflags
* Support for address sanitizer
* Add examples/kdigest sample program
* Add discard helper, test, and man page
* Man page updates
* Sync with kernel 6.10
* send/recv bundle support
* accept nowait and CQE_F_MORE
* Add and update test cases
* Fix io_uring_queue_init_mem() returning a value that was too small,
potentially causing memory corruption in userspace by overwriting
64 bytes beyond the returned value. Also add test case for that.
* Add 64-bit length variants of io_uring_prep_{m,f}advise()
* Add BIND/LISTEN support and helpers / man pages
* Add io_uring_enable_rings.3 man page
* Fix bug in io_uring_prep_read_multishot()
* Fixup bundle test cases
* Add fixed-hugepage test case
* Fix io_uring_prep_fixed_fd_install.3 man page
OBS-URL: https://build.opensuse.org/package/show/devel:libraries:c_c++/liburing?expand=0&rev=50
50 lines
1.5 KiB
Diff
50 lines
1.5 KiB
Diff
From 8100d7b5f862fa514d821e8bd8f99d0de79af571 Mon Sep 17 00:00:00 2001
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From: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
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Date: Fri, 12 Jul 2024 13:17:03 +0200
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Subject: [PATCH] test/buf-ring-nommap: zero the ringbuf memory
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The test crashes when run under the openSUSE build system. It sets
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MALLOC_PERTURB_=69 in the environment, so the allocated memory is
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initialized to 0xba.
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Later in io_uring_get_sqe() -> _io_uring_get_sqe():
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1424 if (next - head <= sq->ring_entries) {
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(gdb) p *sq
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$2 = {khead = 0x55555555d000, ktail = 0x55555555d004,
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kring_mask = 0x55555555d010, kring_entries = 0x55555555d018,
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kflags = 0x55555555d024, kdropped = 0x55555555d020, array = 0x0,
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sqes = 0x55555555c000, sqe_head = 0, sqe_tail = 0, ring_sz = 0,
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ring_ptr = 0x55555555d000, ring_mask = 0, ring_entries = 1, pad = {0, 0}}
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(gdb) p sq->ring_entries
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$3 = 1
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(gdb) p next
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$4 = 1
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(gdb) p/x head
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$6 = 0xbabababa
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And that causes a crash, of course.
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Fix that by zeroing the memory after posix_memalign().
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Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
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---
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test/buf-ring-nommap.c | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/test/buf-ring-nommap.c b/test/buf-ring-nommap.c
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index 1e47f28..17c1495 100644
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--- a/test/buf-ring-nommap.c
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+++ b/test/buf-ring-nommap.c
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@@ -41,6 +41,8 @@ int main(int argc, char *argv[])
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if (posix_memalign(&ring_mem, 16384, 16384))
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return T_EXIT_FAIL;
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+ memset(ring_mem, 0, 16384);
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+
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p.flags = IORING_SETUP_NO_MMAP;
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ret = io_uring_queue_init_mem(1, &ring, &p, ring_mem, 16384);
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if (ret < 0) {
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--
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2.35.3
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