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[Qemu-devel] [PATCH 57/88] esp-pci: fixup deadlock with linux
From: |
Michael Roth |
Subject: |
[Qemu-devel] [PATCH 57/88] esp-pci: fixup deadlock with linux |
Date: |
Thu, 8 Jan 2015 11:34:01 -0600 |
From: Hannes Reinecke <address@hidden>
A linux guest will be issuing messages:
[ 32.124042] DC390: Deadlock in DataIn_0: DMA aborted unfinished: 000000
bytes remain!!
[ 32.126348] DC390: DataIn_0: DMA State: 0
and the HBA will fail to work properly.
Reason is the emulation is not setting the 'DMA transfer done'
status correctly.
Signed-off-by: Hannes Reinecke <address@hidden>
Cc: address@hidden
Signed-off-by: Paolo Bonzini <address@hidden>
(cherry picked from commit c3543fb5fe4520f03dd4fef04fab7745eeca1c96)
Signed-off-by: Michael Roth <address@hidden>
---
hw/scsi/esp-pci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/scsi/esp-pci.c b/hw/scsi/esp-pci.c
index 9971bbf..32849bd 100644
--- a/hw/scsi/esp-pci.c
+++ b/hw/scsi/esp-pci.c
@@ -268,6 +268,8 @@ static void esp_pci_dma_memory_rw(PCIESPState *pci, uint8_t
*buf, int len,
/* update status registers */
pci->dma_regs[DMA_WBC] -= len;
pci->dma_regs[DMA_WAC] += len;
+ if (pci->dma_regs[DMA_WBC] == 0)
+ pci->dma_regs[DMA_STAT] |= DMA_STAT_DONE;
}
static void esp_pci_dma_memory_read(void *opaque, uint8_t *buf, int len)
--
1.9.1
- [Qemu-devel] [PATCH 46/88] vmware-vga: use vmsvga_verify_rect in vmsvga_fill_rect, (continued)
- [Qemu-devel] [PATCH 46/88] vmware-vga: use vmsvga_verify_rect in vmsvga_fill_rect, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 50/88] vnc: sanitize bits_per_pixel from the client, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 40/88] virtio-9p: fix virtio-9p child refcount in transports, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 45/88] vmware-vga: use vmsvga_verify_rect in vmsvga_copy_rect, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 51/88] virtio-scsi: sense in virtio_scsi_command_complete, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 52/88] tcg/mips: fix store softmmu slow path, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 47/88] qcow2: Do not overflow when writing an L1 sector, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 49/88] Make qemu_shutdown_requested signal-safe, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 54/88] hw/xtensa/xtfpga: treat uImage load address as virtual, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 53/88] hw/core/loader: implement address translation in uimage loader, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 57/88] esp-pci: fixup deadlock with linux,
Michael Roth <=
- [Qemu-devel] [PATCH 19/88] virtio-balloon: fix integer overflow in memory stats feature, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 56/88] hw/ppc/spapr_pci.c: Avoid functions not in glib 2.12 (g_hash_table_iter_*), Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 58/88] target-xtensa: add missing window check for entry, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 21/88] ivshmem: Check ivshmem_read() size argument, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 23/88] ivshmem: Fix potential OOB r/w access, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 55/88] snapshot: add bdrv_drain_all() to bdrv_snapshot_delete() to avoid concurrency problem, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 61/88] libcacard: fix resource leak, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 59/88] kvm: Fix memory slot page alignment logic, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 62/88] l2tpv3: fix possible double free, Michael Roth, 2015/01/08
- [Qemu-devel] [PATCH 60/88] virtio-scsi: work around bug in old BIOSes, Michael Roth, 2015/01/08