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Diffstat (limited to 'results/classifier/deepseek-2/output/manual-review/1605506')
| -rw-r--r-- | results/classifier/deepseek-2/output/manual-review/1605506 | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/output/manual-review/1605506 b/results/classifier/deepseek-2/output/manual-review/1605506 new file mode 100644 index 000000000..1fb348586 --- /dev/null +++ b/results/classifier/deepseek-2/output/manual-review/1605506 @@ -0,0 +1,155 @@ + +qemu driver_mirror error "Operation not permitted" + +I use libvirtd to call qemu drive_mirror return error message "Operation not permitted", But directly run qemu and call drive_mirror is OK; +when drive_mirror target is logic device return error message "Operation not permitted",But the file is OK; + +Operating Environment： +OS:ubuntu 14.04 +kernel:3.16.0-28-generic +libvirt-bin version: 1.2.2-0ubuntu13.1.17 +qemu:2.5.0 or 2.6.0 +run vm user: root +（retry in redhat7.2 have the same problem！） + +Here is my running process: +libvirtd call +prepare libvirt xml libvirt.xml +<?xml version="1.0"?><domain type="kvm"> + <name>i-745F35DC</name> + <memory>65536</memory> + <vcpu>1</vcpu> + <cpu mode="host-model"><model fallback="allow"/><topology sockets="1" threads="1" cores="1"/></cpu> + <os><type>hvm</type><boot dev="cdrom"/><boot dev="hd"/></os> + <features><acpi/><apic/><pae/></features> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/local/qemu-2.5.0-20160720/bin/qemu-system-x86_64</emulator> + <graphics type="vnc" passwd="" autoport="yes" keymap="en-us" listen="0.0.0.0"/> + <disk type="file" device="disk"> + <driver name="qemu" type="raw" cache="none"/> + <source file="/tmp/image.raw"/> + <target dev="hda" bus="ide"/> + <serial>bc-system</serial> + </disk> + </devices> + <clock offset="localtime"/> +</domain> + +virsh create libvirt.xml +root@test:/opt/run/instance/i-745F35DC# virsh list + Id Name State +---------------------------------------------------- + 2 i-745F35DC running +call drive_mirror: +virsh qemu-monitor-command --hmp i-745F35DC 'drive_mirror -n -f drive-ide0-0-0 /dev/vg_bc_local/test raw' +Could not open '/dev/vg_bc_local/test': Operation not permitted + +directly run qemu and call drive_mirror: +/usr/local/qemu-2.5.0-20160720/bin/qemu-system-x86_64 -hda /tmp/image.raw -m 64 --enable-kvm -vnc :51 -monitor stdio +QEMU 2.5.0 monitor - type 'help' for more information +(qemu) info block +ide0-hd0 (#block135): /tmp/image.raw (raw) + Cache mode: writeback +(qemu) drive_mirror -n -f ide0-hd0 /dev/vg_bc_local/test raw +(qemu) info block-jobs +Type mirror, device ide0-hd0: Completed 41126400 of 41126400 bytes, speed limit 0 bytes/s +(qemu) block_job_cancel ide0-hd0 +(qemu) info block-jobs +No active jobs + +It is OK!!! + + +Here is my debugging process: +Recompile qemu-2.5.0 to enable debug +../configure --prefix=/usr/local/qemu-2.5.0-20160720 --enable-trace-backend=simple --enable-werror --disable-xen --disable-virtfs --enable-kvm --enable-seccomp --enable-docs --enable-debug-tcg --enable-vnc-sasl --enable-linux-aio --enable-lzo --enable-snappy --enable-usb-redir --enable-vnc-png --disable-vnc-jpeg --enable-uuid --disable-vhost-scsi --enable-rbd --block-drv-rw-whitelist=qcow2,raw,file,host_device,blkdebug,nbd,iscsi,rbd,cdp --block-drv-ro-whitelist=vmdk,vhdx,vpc --target-list=x86_64-softmmu CFLAGS=-O0 + +Use libvirtd to Re-run VM and debug by gdb +VM process info: +root 7804 1 0 10:45 ? 00:00:10 /usr/local/qemu-2.5.0-20160720/bin/qemu-system-x86_64 -name i-745F35DC -S -machine pc-i440fx-2.5,accel=kvm,usb=off -cpu Westmere,+invpcid,+erms,+bmi2,+smep,+avx2,+bmi1,+fsgsbase,+abm,+rdtscp,+pdpe1gb,+rdrand,+f16c,+avx,+osxsave,+xsave,+tsc-deadline,+movbe,+pcid,+pdcm,+xtpr,+fma,+tm2,+est,+vmx,+ds_cpl,+monitor,+dtes64,+pclmuldq,+pbe,+tm,+ht,+ss,+acpi,+ds,+vme -m 64 -realtime mlock=off -smp 1,sockets=1,cores=1,threads=1 -uuid ef55dfa6-b82e-488d-a7fc-4c882f8091ab -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/i-745F35DC.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown -boot strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/tmp/image.raw,if=none,id=drive-ide0-0-0,format=raw,serial=bc-system,cache=none -device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 -vnc 0.0.0.0:0,password -k en-us -device cirrus-vga,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 + +gdb -p 7804 +set breakpoint +(gdb) i b +Num Type Disp Enb Address What +1 breakpoint keep y 0x00007f51d9e92cb1 in qmp_drive_mirror at /opt/qemu/qemu-2.5.0/blockdev.c:3310 +2 breakpoint keep y 0x00007f51da1252f2 in raw_open_common at /opt/qemu/qemu-2.5.0/block/raw-posix.c:457 +3 breakpoint keep y 0x00007f51da12500f in raw_parse_flags at /opt/qemu/qemu-2.5.0/block/raw-posix.c:358 +(gdb) + +call drive_mirror and debug: + +(gdb) +raw_open_common (bs=0x7f4b27259ab0, options=0x7f4b27480290, bdrv_flags=24674, open_flags=0, errp=0x7fff4a19f548) + at /opt/qemu/qemu-2.5.0/block/raw-posix.c:484 +484 s->fd = -1; +(gdb) n +485 fd = qemu_open(filename, s->open_flags, 0644); +(gdb) s +qemu_open (name=0x7f4b2642b5c0 "/dev/vg_bc_local/test", flags=2) at /opt/qemu/qemu-2.5.0/util/osdep.c:177 +177 int mode = 0; +(gdb) n +183 if (strstart(name, "/dev/fdset/", &fdset_id_str)) { +(gdb) +214 if (flags & O_CREAT) { +(gdb) +223 char arg[1000] = {0}; +(gdb) +227 ret = open(name, flags , mode); +(gdb) p name +$1 = 0x7f4b2642b5c0 "/dev/vg_bc_local/test" +(gdb) p flags +$2 = 2 +(gdb) p mode +$3 = 0 +(gdb) n +(gdb) p ret +$4 = -1 + +get system erroron is :Operation not permitted +!!!!!!!!!!!!!! + + +Re-run VM Directly and debug by gdb +/usr/local/qemu-2.5.0-20160720/bin/qemu-system-x86_64 -hda /tmp/image.raw -m 64 --enable-kvm -vnc :51 -monitor stdio +(qemu) info block +ide0-hd0 (#block135): /tmp/image.raw (raw) + Cache mode: writeback +(qemu) drive_mirror -n -f ide0-hd0 /dev/vg_bc_local/test raw + +gdb debug: +(gdb) i b +Num Type Disp Enb Address What +1 breakpoint keep y 0x00007f51d9e92cb1 in qmp_drive_mirror at /opt/qemu/qemu-2.5.0/blockdev.c:3310 +2 breakpoint keep y 0x00007f51da1252f2 in raw_open_common at /opt/qemu/qemu-2.5.0/block/raw-posix.c:457 +3 breakpoint keep y 0x00007f51da12500f in raw_parse_flags at /opt/qemu/qemu-2.5.0/block/raw-posix.c:358 +(gdb) +raw_open_common (bs=0x7f51dc15d350, options=0x7f51dc083110, bdrv_flags=24642, open_flags=0, errp=0x7fff5aaa9738) + at /opt/qemu/qemu-2.5.0/block/raw-posix.c:484 +484 s->fd = -1; +(gdb) n +485 fd = qemu_open(filename, s->open_flags, 0644); +(gdb) s +qemu_open (name=0x7f51dca09230 "/dev/vg_bc_local/test", flags=2) at /opt/qemu/qemu-2.5.0/util/osdep.c:177 +177 int mode = 0; +(gdb) n +183 if (strstart(name, "/dev/fdset/", &fdset_id_str)) { +(gdb) +214 if (flags & O_CREAT) { +(gdb) +223 char arg[1000] = {0}; +(gdb) +227 ret = open(name, flags , mode); +(gdb) p name +$1 = 0x7f51dca09230 "/dev/vg_bc_local/test" +(gdb) p flags +$2 = 2 +(gdb) p mode +$3 = 0 +(gdb) n +(gdb) p ret +$4 = 16 +(gdb) \ No newline at end of file |