Le 26/05/2021 à 11:47, mst a écrit : > So it's a virtio console issue on a windows host. > > [#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-i386.exe: warning: GLib: Too many handles to wait for! > > Laurent?
I will answer on gitlab issue: https://gitlab.com/qemu-project/qemu/-/issues/332 -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1924912 Title: VirtIO drivers don't work on Windows: "GLib: Too many handles to wait for!" crash Status in QEMU: Fix Released Bug description: I ran SerenityOS <https://github.com/SerenityOS/serenity> out of WSL2 with native Windows QEMU. The system runs fine on the Linux QEMU (with Windows X-Server). However, with Windows QEMU I get a hard crash after the following output: ``` [#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-i386.exe: warning: GLib: Too many handles to wait for! ``` 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://github.com/SerenityOS/serenity/issues/6422>. The kernel devs pointed out that this seems to be a VirtIO driver/device issue on the Windows build of QEMU, because the Serenity kernel tries to initialize VirtIO devices which apparently crashes QEMU. There will be mitigations from the SerenityOS side (by allowing to disable VirtIO on boot) but it would of course be great if QEMU handled this properly. 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. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1924912/+subscriptions
