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Description of problem:
boot qemu-kvm attach two scsi-hd devices with the same "scsi-id and lun" and do not specify the memory size(using the defaults memory size), qemu-kvm will core dump.
Version-Release number of selected component (if applicable):
qemu-kvm-1.5.3-60.el7_0.2.x86_64
3.10.0-123.el7.x86_64
seabios-bin-1.7.2.2-12.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1.boot qemu-kvm using the following cli:
# gdb --agrs /usr/libexec/qemu-kvm \
-device virtio-scsi-pci,id=scsi0 \
-drive file=/home/juli/sn1.qcow2,if=none,id=disk1 \
-device scsi-hd,drive=disk1,id=sys-disk1,scsi-id=0,lun=0,bootindex=0 \
-boot menu=on -monitor stdio -S \
-drive file=/home/juli/sn1.qcow2,if=none,id=disk2 \
-device scsi-hd,drive=disk2,id=sys-disk2,scsi-id=0,lun=0,bootindex=3
2.
3.
Actual results:
(gdb) bt
#0 qdev_get_fw_dev_path_helper (dev=0x555556b00480,
p=p@entry=0x7fffffffddd0 "0", size=128) at hw/core/qdev.c:506
#1 0x00005555556718b3 in qdev_get_fw_dev_path (dev=<optimized out>)
at hw/core/qdev.c:525
#2 0x00005555557439c5 in get_boot_devices_list (
size=size@entry=0x7fffffffded0) at vl.c:1229
#3 0x00005555556a1220 in fw_cfg_machine_ready (n=0x555556aa6bd0,
data=<optimized out>) at hw/nvram/fw_cfg.c:503
#4 0x0000555555854ca7 in notifier_list_notify (
list=list@entry=0x5555560602c8 <machine_init_done_notifiers>,
data=data@entry=0x0) at util/notify.c:39
#5 0x0000555555601ec4 in qemu_run_machine_init_done_notifiers () at vl.c:2692
#6 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>)
at vl.c:4333
Expected results:
No core dump.
Additional info:
When set -m 512M, qemu-kvm will core dump, too.
# gdb --args /usr/libexec/qemu-kvm -device virtio-scsi-pci,id=scsi0 -drive file=/home/juli/sn1.qcow2,if=none,id=disk1 -device scsi-hd,drive=disk1,id=sys-disk1,scsi-id=0,lun=0,bootindex=0 -boot menu=on -monitor stdio -S -drive file=/home/juli/sn1.qcow2,if=none,id=disk2 -device scsi-hd,drive=disk2,id=sys-disk2,scsi-id=0,lun=0,bootindex=3 -m 512M
(gdb) bt
#0 0x0000555555671027 in qdev_get_fw_dev_path_helper (dev=0x7,
p=p@entry=0x7fffffffddc0 "0", size=128) at hw/core/qdev.c:504
#1 0x000055555567103d in qdev_get_fw_dev_path_helper (dev=0x555556ac61c0,
p=p@entry=0x7fffffffddc0 "0", size=128) at hw/core/qdev.c:506
#2 0x00005555556718b3 in qdev_get_fw_dev_path (dev=<optimized out>)
at hw/core/qdev.c:525
#3 0x00005555557439c5 in get_boot_devices_list (
size=size@entry=0x7fffffffdec0) at vl.c:1229
#4 0x00005555556a1220 in fw_cfg_machine_ready (n=0x555556acc260,
data=<optimized out>) at hw/nvram/fw_cfg.c:503
#5 0x0000555555854ca7 in notifier_list_notify (
list=list@entry=0x5555560602c8 <machine_init_done_notifiers>,
data=data@entry=0x0) at util/notify.c:39
#6 0x0000555555601ec4 in qemu_run_machine_init_done_notifiers () at vl.c:2692
#7 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>)
at vl.c:4333
----
When set memory size >=889M, will no core dump.
Description of problem: boot qemu-kvm attach two scsi-hd devices with the same "scsi-id and lun" and do not specify the memory size(using the defaults memory size), qemu-kvm will core dump. Version-Release number of selected component (if applicable): qemu-kvm-1.5.3-60.el7_0.2.x86_64 3.10.0-123.el7.x86_64 seabios-bin-1.7.2.2-12.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1.boot qemu-kvm using the following cli: # gdb --agrs /usr/libexec/qemu-kvm \ -device virtio-scsi-pci,id=scsi0 \ -drive file=/home/juli/sn1.qcow2,if=none,id=disk1 \ -device scsi-hd,drive=disk1,id=sys-disk1,scsi-id=0,lun=0,bootindex=0 \ -boot menu=on -monitor stdio -S \ -drive file=/home/juli/sn1.qcow2,if=none,id=disk2 \ -device scsi-hd,drive=disk2,id=sys-disk2,scsi-id=0,lun=0,bootindex=3 2. 3. Actual results: (gdb) bt #0 qdev_get_fw_dev_path_helper (dev=0x555556b00480, p=p@entry=0x7fffffffddd0 "0", size=128) at hw/core/qdev.c:506 #1 0x00005555556718b3 in qdev_get_fw_dev_path (dev=<optimized out>) at hw/core/qdev.c:525 #2 0x00005555557439c5 in get_boot_devices_list ( size=size@entry=0x7fffffffded0) at vl.c:1229 #3 0x00005555556a1220 in fw_cfg_machine_ready (n=0x555556aa6bd0, data=<optimized out>) at hw/nvram/fw_cfg.c:503 #4 0x0000555555854ca7 in notifier_list_notify ( list=list@entry=0x5555560602c8 <machine_init_done_notifiers>, data=data@entry=0x0) at util/notify.c:39 #5 0x0000555555601ec4 in qemu_run_machine_init_done_notifiers () at vl.c:2692 #6 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4333 Expected results: No core dump. Additional info: When set -m 512M, qemu-kvm will core dump, too. # gdb --args /usr/libexec/qemu-kvm -device virtio-scsi-pci,id=scsi0 -drive file=/home/juli/sn1.qcow2,if=none,id=disk1 -device scsi-hd,drive=disk1,id=sys-disk1,scsi-id=0,lun=0,bootindex=0 -boot menu=on -monitor stdio -S -drive file=/home/juli/sn1.qcow2,if=none,id=disk2 -device scsi-hd,drive=disk2,id=sys-disk2,scsi-id=0,lun=0,bootindex=3 -m 512M (gdb) bt #0 0x0000555555671027 in qdev_get_fw_dev_path_helper (dev=0x7, p=p@entry=0x7fffffffddc0 "0", size=128) at hw/core/qdev.c:504 #1 0x000055555567103d in qdev_get_fw_dev_path_helper (dev=0x555556ac61c0, p=p@entry=0x7fffffffddc0 "0", size=128) at hw/core/qdev.c:506 #2 0x00005555556718b3 in qdev_get_fw_dev_path (dev=<optimized out>) at hw/core/qdev.c:525 #3 0x00005555557439c5 in get_boot_devices_list ( size=size@entry=0x7fffffffdec0) at vl.c:1229 #4 0x00005555556a1220 in fw_cfg_machine_ready (n=0x555556acc260, data=<optimized out>) at hw/nvram/fw_cfg.c:503 #5 0x0000555555854ca7 in notifier_list_notify ( list=list@entry=0x5555560602c8 <machine_init_done_notifiers>, data=data@entry=0x0) at util/notify.c:39 #6 0x0000555555601ec4 in qemu_run_machine_init_done_notifiers () at vl.c:2692 #7 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4333 ---- When set memory size >=889M, will no core dump.