VirtIO drivers don't work on Windows: "GLib: Too many handles to wait for!" crash
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
QEMU |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
I ran SerenityOS <https:/
```
[#0 colonel(0:0)]: Scheduler[0]: idle loop running
[init_stage2(2:2)]: PCI [0000:00:00:00] PCI::ID [8086:1237]
[init_stage2(2:2)]: PCI [0000:00:01:00] PCI::ID [8086:7000]
[init_stage2(2:2)]: PCI [0000:00:01:01] PCI::ID [8086:7010]
[init_stage2(2:2)]: PCI [0000:00:01:02] PCI::ID [8086:7020]
[init_stage2(2:2)]: PCI [0000:00:01:03] PCI::ID [8086:7113]
[init_stage2(2:2)]: PCI [0000:00:02:00] PCI::ID [1234:1111]
[init_stage2(2:2)]: PCI [0000:00:03:00] PCI::ID [8086:2922]
[init_stage2(2:2)]: PCI [0000:00:04:00] PCI::ID [1af4:1003]
[init_stage2(2:2)]: PCI [0000:00:05:00] PCI::ID [1af4:1005]
[init_stage2(2:2)]: PCI [0000:00:06:00] PCI::ID [8086:100e]
[#0 init_stage2(2:2)]: BXVGA: framebuffer @ P0xf8000000
[#0 init_stage2(2:2)]: BXVGADevice resolution set to 1024x768 (pitch=4096)
[init_stage2(2:2)]: UHCI: Controller found PCI::ID [8086:7020] @ PCI [0000:00:01:02]
[init_stage2(2:2)]: UHCI: I/O base IO c080
[init_stage2(2:2)]: UHCI: Interrupt line: 11
[#0 init_stage2(2:2)]: UHCI: Allocated framelist at physical address P0x00e40000
[#0 init_stage2(2:2)]: UHCI: Framelist is at virtual address V0xc115d000
[#0 init_stage2(2:2)]: UHCI: QH(0xc115f000) @ 14946304: link_ptr=14946338, element_link_ptr=1
[#0 init_stage2(2:2)]: UHCI: QH(0xc115f020) @ 14946336: link_ptr=14946370, element_link_ptr=1
[#0 init_stage2(2:2)]: UHCI: QH(0xc115f040) @ 14946368: link_ptr=14946402, element_link_ptr=1
[#0 init_stage2(2:2)]: UHCI: QH(0xc115f060) @ 14946400: link_ptr=14946434, element_link_ptr=1
[#0 init_stage2(2:2)]: UHCI: QH(0xc115f080) @ 14946432: link_ptr=14958593, element_link_ptr=1
[#0 init_stage2(2:2)]: UHCI: Reset completed
[#0 init_stage2(2:2)]: UHCI: Started
[#0 init_stage2(2:2)]: DMIExpose: SMBIOS 32bit Entry point @ P0x000f5870
[#0 init_stage2(2:2)]: DMIExpose: Data table @ P0x000f5890
[#0 init_stage2(2:2)]: VirtIOConsole: Found @ PCI [0000:00:04:00]
[#0 init_stage2(2:2)]: Trying to unregister unused handler (?)
[#0 init_stage2(2:2)]: VirtIOConsole: Multi port is not yet supported!
[#0 init_stage2(2:2)]: VirtIOConsole: cols: 0, rows: 0, max nr ports 0
qemu-system-
```
The lines starting with [ are SerenityOS output; QEMU warns "GLib: Too many handles to wait for!" and crashes right after (can't even Ctrl-C in the WSL command line, force-close in Windows necessary). A window is still spawned but as the OS already switched out of text mode, just a black screen is visible as QEMU crashes.
I first thought this to be an issue with SerenityOS and reported it over there: <https:/
Version info: Both QEMU 6.0.0-rc3 and 5.2.0 exhibit this issue. Windows release is 20H2, WSL2 is running Debian 10.9. SerenityOS has no proper version but it was reproduced on the most current commits as of 18/04/2021.
Did you build your own Windows binary based on the official sources? Or did you use a precompiled binary? If yes, which one?
Please describe the exact steps to reproduce the issue.