[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 1/1] ide: fix halted IO segfault at reset
From: |
John Snow |
Subject: |
[Qemu-devel] [PATCH v2 1/1] ide: fix halted IO segfault at reset |
Date: |
Wed, 27 Jul 2016 12:00:01 -0400 |
If one attempts to perform a system_reset after a failed IO request
that causes the VM to enter a paused state, QEMU will segfault trying
to free up the pending IO requests.
These requests have already been completed and freed, though, so all
we need to do is NULL them before we enter the paused state.
Existing AHCI tests verify that halted requests are still resumed
successfully after a STOP event.
Analyzed-by: Laszlo Ersek <address@hidden>
Reviewed-by: Laszlo Ersek <address@hidden>
Signed-off-by: John Snow <address@hidden>
---
hw/ide/core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/ide/core.c b/hw/ide/core.c
index 081c9eb..d117b7c 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -823,6 +823,7 @@ static void ide_dma_cb(void *opaque, int ret)
}
if (ret < 0) {
if (ide_handle_rw_error(s, -ret, ide_dma_cmd_to_retry(s->dma_cmd))) {
+ s->bus->dma->aiocb = NULL;
return;
}
}
--
2.7.4