[Bug 697510] Re: Machine shut off after tons of lsi_scsi: error: MSG IN data too long

[Alexander Bulekov]

Here is a qtest reproducer:

cat << EOF | ./i386-softmmu/qemu-system-i386 -nographic -M q35,accel=qtest 
-qtest stdio -drive 
if=none,id=drive0,file=null-co://,file.read-zeroes=on,format=raw   -device 
lsi53c895a,id=scsi0 -device 
scsi-hd,drive=drive0,bus=scsi0.0,channel=0,scsi-id=0,lun=0 -monitor none 
-serial none 
outl 0xcf8 0x80001814
outl 0xcfc 0xe1068000
outl 0xcf8 0x80001818
outl 0xcf8 0x80001804
outw 0xcfc 0x7
outl 0xcf8 0x80002010
write 0xe106802e 0x1 0xff
write 0xe106802f 0x1 0xff
EOF

With -trace lsi\*:
...
[R +0.037396] write 0xe106802e 0x1 0xff
15257@1594419708.889733:lsi_reg_write Write reg DSP2 0x2e = 0xff
OK
[S +0.037420] OK
[R +0.037434] write 0xe106802f 0x1 0xff
15257@1594419708.889814:lsi_reg_write Write reg DSP3 0x2f = 0xff
15257@1594419708.889862:lsi_execute_script SCRIPTS dsp=0xffff0000 opcode 
0x105e8b06 arg 0x89084e8b
qemu-system-i386: /home/alxndr/Development/qemu/hw/scsi/lsi53c895a.c:624: void 
lsi_do_dma(LSIState *, int): Assertion `s->current' failed.

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https://bugs.launchpad.net/bugs/697510

Title:
  Machine shut off after tons of lsi_scsi: error: MSG IN data too long

Status in QEMU:
  New

Bug description:
  The problem mostly happens during our backup, syslog does not have any
  problematic messages.

  Host is Ubuntu 10.10 x86 64 bits
  Guest is Windows 2003 Server 32 bits
  Using Virtio and Red Hat driver I get a STOP screen 0x100000d1 and machine 
either reboot, stay frozen or shut off.
  Using SCSI the machine shuts off and I get tons of message on stdout;

  LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/sbin:/sbin:/bin 
QEMU_AUDIO_DRV=none /usr/bin/kvm -S -M pc-0.12 -enable-kvm -m 3500 -smp 
4,sockets=4,cores=1,threads=1 -name BMSRV0101 -uuid 
6ccbb5fa-5880-a1ab-3b7a-fb7ccc7c8ccf -nodefaults -chardev 
socket,id=monitor,path=/var/lib/libvirt/qemu/BMSRV0101.monitor,server,nowait 
-mon chardev=monitor,mode=readline -rtc base=localtime -boot c -device 
lsi,id=scsi0,bus=pci.0,addr=0x4 -drive 
if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device 
ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -drive 
file=/dev/vgUbuntu/vmBMSRV0101,if=none,id=drive-scsi0-0-0,boot=on,format=raw 
-device scsi-disk,bus=scsi0.0,scsi-id=0,drive=drive-scsi0-0-0,id=scsi0-0-0 
-device virtio-net-pci,vlan=0,id=net0,mac=52:54:00:5d:7b:07,bus=pci.0,addr=0x3 
-net tap,fd=63,vlan=0,name=hostnet0 -chardev pty,id=serial0 -device 
isa-serial,chardev=serial0 -usb -device usb-tablet,id=input0 -vnc 127.0.0.1:0 
-vga cirrus -device usb-host,hostbus=002,hostaddr=005,id=hostdev0 -device 
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 
  char device redirected to /dev/pts/0
  pci_add_option_rom: failed to find romfile "pxe-virtio.bin"
  husb: open device 2.5
  husb: config #1 need -1
  husb: 1 interfaces claimed for configuration 1
  husb: grabbed usb device 2.5
  husb: config #1 need 1
  husb: 1 interfaces claimed for configuration 1

  lsi_scsi: error: Unimplemented message 0x00
  (x8)

  lsi_scsi: error: MSG IN data too long
  lsi_scsi: error: Unimplemented message 0x00
  (x760)

  lsi_scsi: error: MSG IN data too long
  lsi_scsi: error: MSG IN data too long
  kvm: /build/buildd/qemu-kvm-0.12.5+noroms/hw/lsi53c895a.c:512: lsi_do_dma: 
Assertion `s->current' failed.

  
  I can include minidump file if needed.
  I am currently using IDE and it seems OK.

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