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[Qemu-devel] [PATCH 56/56] ide: fix halted IO segfault at reset
From: |
Michael Roth |
Subject: |
[Qemu-devel] [PATCH 56/56] ide: fix halted IO segfault at reset |
Date: |
Mon, 8 Aug 2016 16:04:27 -0500 |
From: John Snow <address@hidden>
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>
Message-id: address@hidden
Signed-off-by: John Snow <address@hidden>
(cherry picked from commit 87ac25fd1fed05a30a93d27dbeb2a4c4b83ec95f)
Signed-off-by: Michael Roth <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 41e6a2d..e87dc57 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -806,6 +806,7 @@ 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;
}
}
--
1.9.1
- [Qemu-devel] [PATCH 47/56] util: Fix MIN_NON_ZERO, (continued)
- [Qemu-devel] [PATCH 47/56] util: Fix MIN_NON_ZERO, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 48/56] block/iscsi: fix rounding in iscsi_allocationmap_set, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 04/56] tools: kvm_stat: Powerpc related fixes, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 49/56] Fix some typos found by codespell, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 53/56] pcie: fix link active status bit migration, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 52/56] nbd: Limit nbdflags to 16 bits, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 51/56] nbd: Don't use *_to_cpup() functions, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 54/56] target-i386: fix typo in xsetbv implementation, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 55/56] virtio: error out if guest exceeds virtqueue size, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 06/56] usb:xhci: no DMA on HC reset, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 56/56] ide: fix halted IO segfault at reset,
Michael Roth <=
- [Qemu-devel] [PATCH 07/56] target-mips: fix call to memset in soft reset code, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 08/56] target-i386: key sfence availability on CPUID_SSE, not CPUID_SSE2, Michael Roth, 2016/08/08
- [Qemu-devel] [PATCH 05/56] exec.c: Ensure right alignment also for file backed ram, Michael Roth, 2016/08/08
- Re: [Qemu-devel] [Qemu-stable] [PATCH 00/56] Patch Round-up for stable 2.6.1, freeze on 2016-08-12, Cole Robinson, 2016/08/08
- Re: [Qemu-devel] [Qemu-stable] [PATCH 00/56] Patch Round-up for stable 2.6.1, freeze on 2016-08-12, Michael Roth, 2016/08/09
- Re: [Qemu-devel] [PATCH 00/56] Patch Round-up for stable 2.6.1, freeze on 2016-08-12, Bruce Rogers, 2016/08/09