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Re: qemu-system-aarch64 crashes with device ich9-usb-ehci1
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From: |
Richard Henderson |
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Subject: |
Re: qemu-system-aarch64 crashes with device ich9-usb-ehci1 |
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Date: |
Thu, 25 Mar 2021 11:12:28 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.7.1 |
On 3/25/21 10:58 AM, Thomas Huth wrote:
In case anybody is interested, ich9-usb-ehci1 can be used to crash QEMU:
$ ./qemu-system-aarch64 -M virt -device ich9-usb-ehci1,help
qemu-system-aarch64: ../../devel/qemu/softmmu/physmem.c:1154: phys_section_add:
Assertion `map->sections_nb < TARGET_PAGE_SIZE' failed.
Aborted (core dumped)
That's because
#14 0x0000555555afad47 in usb_ehci_init (s=0x555556ee54b0, dev=0x555556ee4bb0)
at ../qemu/hw/usb/hcd-ehci.c:2585
is doing stuff at init time that should be done at realize.
The virt board has not yet set the system page size, which is currently at 0.
r~