I am having problems with save/restore under 3.3.1 in the GPLPV drivers.
I call hvm_shutdown(xpdd, SHUTDOWN_suspend), but as soon as I lower IRQL
(enabling interrupts), qemu goes to 100% CPU and the DomU load goes
right up too.
Xentrace is showing a whole lot of this going on:
CPU0 200130258143212 (+ 770) hypercall [ rip =
0x000000008020632a, eax = 0xffffffff ]
CPU0 200130258151107 (+ 7895) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
CPU0 200130258156293 (+ 5186) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
CPU0 200130258161233 (+ 4940) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
CPU0 200130258165467 (+ 4234) hypercall [ rip =
0x000000008020640a, eax = 0xffffffff ]
CPU0 200130258167202 (+ 1735) domain_wake [ domid =
0x00000062, edomid = 0x00000000 ]
CPU0 200130258168511 (+ 1309) switch_infprev [ old_domid =
0x00000000, runtime = 31143 ]
CPU0 200130258168716 (+ 205) switch_infnext [ new_domid =
0x00000062, time = 786, r_time = 30000000 ]
CPU0 200130258169338 (+ 622) __enter_scheduler [
prev<domid:edomid> = 0x00000000 : 0x00000000, next<domid:edomid> =
0x00000062 : 0x00000000 ]
CPU0 200130258175532 (+ 6194) VMENTRY [ dom:vcpu = 0x00000062 ]
CPU0 200130258179633 (+ 4101) VMEXIT [ dom:vcpu = 0x00000062,
exitcode = 0x0000004e, rIP = 0x0000000080a562b9 ]
CPU0 0 (+ 0) MMIO_AST_WR [ address = 0xfee000b0, data =
0x00000000 ]
CPU0 0 (+ 0) PF_XEN [ dom:vcpu = 0x00000062, errorcode =
0x0b, virt = 0xfffe00b0 ]
CPU0 0 (+ 0) INJ_VIRQ [ dom:vcpu = 0x00000062, vector = 0x00,
fake = 1 ]
CPU0 200130258185932 (+ 6299) VMENTRY [ dom:vcpu = 0x00000062 ]
CPU0 200130258189737 (+ 3805) VMEXIT [ dom:vcpu = 0x00000062,
exitcode = 0x00000064, rIP = 0x0000000080a560ad ]
CPU0 0 (+ 0) INJ_VIRQ [ dom:vcpu = 0x00000062, vector = 0x83,
fake = 0 ]
CPU0 200130258190990 (+ 1253) VMENTRY [ dom:vcpu = 0x00000062 ]
CPU0 200130258194791 (+ 3801) VMEXIT [ dom:vcpu = 0x00000062,
exitcode = 0x0000007b, rIP = 0x0000000080a5a29e ]
CPU0 0 (+ 0) IO_ASSIST [ dom:vcpu = 0x0000c202, data = 0x0000
]
CPU0 200130258198944 (+ 4153) switch_infprev [ old_domid =
0x00000062, runtime = 17087 ]
CPU0 200130258199132 (+ 188) switch_infnext [ new_domid =
0x00000000, time = 17087, r_time = 30000000 ]
CPU0 200130258199702 (+ 570) __enter_scheduler [
prev<domid:edomid> = 0x00000062 : 0x00000000, next<domid:edomid> =
0x00000000 : 0x00000000 ]
CPU0 200130258206470 (+ 6768) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
CPU0 200130258210964 (+ 4494) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
CPU0 200130258214767 (+ 3803) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
CPU0 200130258218019 (+ 3252) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
CPU0 200130258227419 (+ 9400) hypercall [ rip =
0x00000000802062eb, eax = 0xffffffff ]
It kind of looks like vector 0x83 is being fired over and over, which
would explain why things hang once I enable interrupts again. I will
look into what vector 0x83 is attached to, but does anyone have any
ideas?
Thanks
James
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