diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/device/1314857')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/device/1314857 | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/device/1314857 b/results/classifier/deepseek-2-tmp/output/device/1314857 deleted file mode 100644 index bc359352..00000000 --- a/results/classifier/deepseek-2-tmp/output/device/1314857 +++ /dev/null @@ -1,20 +0,0 @@ - -seg fault in ivshmem when using ioeventfd=on - -When launching qemu with the ivshmem device and the nahanni guest server there is segmentation fault in the setup_ioeventfds function of ivshmem.c. If the ioeventfd=on flag is set the pci_ivshmem_init will call setup_ioeventfds at line 668. This function relies on the 'peers' member of the server info which is not allocated until line 669. - -To reproduce you will need the nahanni guest server code. The driver code is not needed. You will also need a qcow2 or other bootable image to use for launching qemu. The error occurs before the actual image launch. - -Start the nahanni ivshmem server with a small global memory space ( although the bug is not allocation specific ) -ivshmem -m 1 -n 2 -p /tmp/ivshmem_socket - -Next launch qemu with initialization for the ivshmem device. -qemu-system-x86_64 -hda test_iso.qcow2 -localtime -boot c -chardev socket,path="/tmp/ivshmem_socket",id=ivshmem_socket -device ivshmem,chardev=ivshmem_socket,size=1,ioeventfd=on - -If gdb is used the following error is recorded: -Program received signal SIGSEGV, Segmentation fault. -0x000055555579dd52 in setup_ioeventfds (s=0x555556619580) - at /home/genes/work/ubuntu/qemu-kvm-1.0+noroms/hw/ivshmem.c:367 -367 for (j = 0; j < s->peers[i].nb_eventfds; j++) { -(gdb) print s->peers -$2 = (Peer *) 0x0 \ No newline at end of file |