From: Alexander Bulekov <alxndr@bu.edu>
To: qemu-devel@nongnu.org
Cc: Fam Zheng <fam@euphon.net>, Laurent Vivier <lvivier@redhat.com>,
Thomas Huth <thuth@redhat.com>,
Cave-Ayland <mark.cave-ayland@ilande.co.uk>,
Alexander Bulekov <alxndr@bu.edu>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH] tests/qtest: add one more test for the am53c974
Date: Fri, 2 Apr 2021 12:20:52 -0400 [thread overview]
Message-ID: <20210402162052.264952-1-alxndr@bu.edu> (raw)
In-Reply-To: <bb30a76c-c758-6829-d3fe-3e2d01cf55b6@ilande.co.uk>
Original crash:
qemu-fuzz-i386: ../hw/scsi/esp.c:791: void esp_transfer_data(SCSIRequest *, uint32_t): Assertion `!s->do_cmd' failed.
==257532== ERROR: libFuzzer: deadly signal
__assert_fail assert/assert.c:101:3
esp_transfer_data hw/scsi/esp.c:791:5
scsi_req_data hw/scsi/scsi-bus.c:1412:9
scsi_disk_emulate_read_data hw/scsi/scsi-disk.c:1407:9
scsi_req_continue hw/scsi/scsi-bus.c:1394:9
do_busid_cmd hw/scsi/esp.c:317:9
handle_s_without_atn hw/scsi/esp.c:393:9
esp_reg_write hw/scsi/esp.c:1029:13
esp_pci_io_write hw/scsi/esp-pci.c:215:9
memory_region_write_accessor softmmu/memory.c:491:5
access_with_adjusted_size softmmu/memory.c:552:18
memory_region_dispatch_write softmmu/memory.c:1502:16
flatview_write_continue softmmu/physmem.c:2746:23
flatview_write softmmu/physmem.c:2786:14
address_space_write softmmu/physmem.c:2878:18
cpu_outl softmmu/ioport.c:80:5
Based-on: <20210401074933.9923-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
---
tests/qtest/am53c974-test.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
The patch took care of the handle_satn_stop assert. Here's a test case
for the other assert.
Pasteable:
cat << EOF | ./qemu-system-i386 -display none -machine accel=qtest, -m \
512M -device am53c974,id=scsi -device scsi-hd,drive=disk0 -drive \
id=disk0,if=none,file=null-co://,format=raw -nodefaults -qtest stdio
outl 0xcf8 0x80001010
outl 0xcfc 0xc000
outl 0xcf8 0x80001004
outw 0xcfc 0x01
outl 0xc00b 0x4100
outb 0xc008 0x42
outw 0xc03f 0x0300
outl 0xc00b 0xc100
EOF
diff --git a/tests/qtest/am53c974-test.c b/tests/qtest/am53c974-test.c
index 9c4285d0c0..506276677a 100644
--- a/tests/qtest/am53c974-test.c
+++ b/tests/qtest/am53c974-test.c
@@ -9,6 +9,22 @@
#include "libqos/libqtest.h"
+static void test_do_cmd_assert(void)
+{
+ QTestState *s = qtest_init(
+ "-device am53c974,id=scsi "
+ "-device scsi-hd,drive=disk0 -drive "
+ "id=disk0,if=none,file=null-co://,format=raw -nodefaults");
+ qtest_outl(s, 0xcf8, 0x80001010);
+ qtest_outl(s, 0xcfc, 0xc000);
+ qtest_outl(s, 0xcf8, 0x80001004);
+ qtest_outw(s, 0xcfc, 0x01);
+ qtest_outl(s, 0xc00b, 0x4100);
+ qtest_outb(s, 0xc008, 0x42);
+ qtest_outw(s, 0xc03f, 0x0300);
+ qtest_outl(s, 0xc00b, 0xc100);
+ qtest_quit(s);
+}
static void test_cmdfifo_underflow_ok(void)
{
@@ -194,6 +210,8 @@ int main(int argc, char **argv)
g_test_init(&argc, &argv, NULL);
if (strcmp(arch, "i386") == 0) {
+ qtest_add_func("am53c974/test_do_cmd_asser",
+ test_do_cmd_assert);
qtest_add_func("am53c974/test_cmdfifo_underflow_ok",
test_cmdfifo_underflow_ok);
qtest_add_func("am53c974/test_cmdfifo_underflow2_ok",
--
2.28.0
next prev parent reply other threads:[~2021-04-02 16:23 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 7:49 [PATCH v3 00/11] esp: fix asserts/segfaults discovered by fuzzer Mark Cave-Ayland
2021-04-01 7:49 ` [PATCH v3 01/11] esp: always check current_req is not NULL before use in DMA callbacks Mark Cave-Ayland
2021-04-01 7:49 ` [PATCH v3 02/11] esp: rework write_response() to avoid using the FIFO for DMA transactions Mark Cave-Ayland
2021-04-01 8:26 ` Philippe Mathieu-Daudé
2021-04-01 7:49 ` [PATCH v3 03/11] esp: consolidate esp_cmdfifo_push() into esp_fifo_push() Mark Cave-Ayland
2021-04-01 8:15 ` Philippe Mathieu-Daudé
2021-04-01 8:50 ` Mark Cave-Ayland
2021-04-01 9:16 ` Philippe Mathieu-Daudé
2021-04-01 7:49 ` [PATCH v3 04/11] esp: consolidate esp_cmdfifo_pop() into esp_fifo_pop() Mark Cave-Ayland
2021-04-01 8:15 ` Philippe Mathieu-Daudé
2021-04-01 7:49 ` [PATCH v3 05/11] esp: introduce esp_fifo_pop_buf() and use it instead of fifo8_pop_buf() Mark Cave-Ayland
2021-04-01 9:34 ` Philippe Mathieu-Daudé
2021-04-01 10:51 ` Mark Cave-Ayland
2021-04-01 18:05 ` Philippe Mathieu-Daudé
2021-04-01 7:49 ` [PATCH v3 06/11] esp: ensure cmdfifo is not empty and current_dev is non-NULL Mark Cave-Ayland
2021-04-01 8:17 ` Philippe Mathieu-Daudé
2021-04-01 7:49 ` [PATCH v3 07/11] esp: don't underflow cmdfifo in do_cmd() Mark Cave-Ayland
2021-04-01 8:19 ` Philippe Mathieu-Daudé
2021-04-01 8:51 ` Mark Cave-Ayland
2021-04-01 7:49 ` [PATCH v3 08/11] esp: don't overflow cmdfifo in get_cmd() Mark Cave-Ayland
2021-04-01 8:19 ` Philippe Mathieu-Daudé
2021-04-01 8:56 ` Mark Cave-Ayland
2021-04-01 7:49 ` [PATCH v3 09/11] esp: don't overflow cmdfifo if TC is larger than the cmdfifo size Mark Cave-Ayland
2021-04-01 7:49 ` [PATCH v3 10/11] esp: don't reset async_len directly in esp_select() if cancelling request Mark Cave-Ayland
2021-04-01 7:49 ` [PATCH v3 11/11] tests/qtest: add tests for am53c974 device Mark Cave-Ayland
2021-04-01 16:55 ` Alexander Bulekov
2021-04-02 7:29 ` Mark Cave-Ayland
2021-04-01 17:00 ` [PATCH v3 00/11] esp: fix asserts/segfaults discovered by fuzzer Alexander Bulekov
2021-04-02 7:35 ` Mark Cave-Ayland
2021-04-02 16:20 ` Alexander Bulekov [this message]
2021-04-03 14:38 ` [PATCH] tests/qtest: add one more test for the am53c974 Mark Cave-Ayland
2021-04-07 12:08 ` Mark Cave-Ayland
2021-04-07 13:04 ` Mark Cave-Ayland
2021-04-07 14:49 ` Alexander Bulekov
2021-04-07 15:11 ` Mark Cave-Ayland
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