[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1902262
Title:
vmstate_load_state return error into virtio_load function
Status in QEMU:
Expired
Bug description:
Qemu version 4.2.1
In the function of virtio_load, the vmstate_load_state will return
error in the following case.
The virtio is legacy mode(disable-modern=on,disable-legacy=off),
virtio_device is in reset state.
In the the function of "vmstate_load_state", it will load all subsection. For
the vmstate_virtio_extra_state subsection.
It will execute:
vmstate_load_state -->
ret = field->info->get(f, curr_elem, size, field); line 143
vmstate.c.
-->virtio_pci_load_extra_state
--> vmstate_load_state
-->qemu_peek_byte
But if the f->buf_index is same with buf_size, qemu_peek_byte function will
set "-EIO" error.
the field->info->get will return 0, then it will get the error "ret =
qemu_file_get_error(f);". then the vmstate_load_state will return error.
It output is "Failed to load virtio/extra_state:extra_state"
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