* qemu-system-aarch64 crashes with device ich9-usb-ehci1
@ 2021-03-25 16:58 Thomas Huth
2021-03-25 17:12 ` Richard Henderson
0 siblings, 1 reply; 2+ messages in thread
From: Thomas Huth @ 2021-03-25 16:58 UTC (permalink / raw
To: QEMU Developers, qemu-arm; +Cc: Gerd Hoffmann
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)
Thomas
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: qemu-system-aarch64 crashes with device ich9-usb-ehci1
2021-03-25 16:58 qemu-system-aarch64 crashes with device ich9-usb-ehci1 Thomas Huth
@ 2021-03-25 17:12 ` Richard Henderson
0 siblings, 0 replies; 2+ messages in thread
From: Richard Henderson @ 2021-03-25 17:12 UTC (permalink / raw
To: Thomas Huth, QEMU Developers, qemu-arm; +Cc: Gerd Hoffmann
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~
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-03-25 16:58 qemu-system-aarch64 crashes with device ich9-usb-ehci1 Thomas Huth
2021-03-25 17:12 ` Richard Henderson
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