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authorChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:07 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-30 16:52:17 +0200
commit9260319e7411ff8281700a532caa436f40120ec4 (patch)
tree2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues/target_missing/host_missing/accel_missing/2014.toml
parent225caa38269323af1bfc2daadff5ec8bd930747f (diff)
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Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/2014.toml')
-rw-r--r--gitlab/issues/target_missing/host_missing/accel_missing/2014.toml61
1 files changed, 0 insertions, 61 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/2014.toml b/gitlab/issues/target_missing/host_missing/accel_missing/2014.toml
deleted file mode 100644
index 00df4b08d..000000000
--- a/gitlab/issues/target_missing/host_missing/accel_missing/2014.toml
+++ /dev/null
@@ -1,61 +0,0 @@
-id = 2014
-title = "virtio: bounce.in_use==true in virtqueue_map_desc()"
-state = "opened"
-created_at = "2023-12-02T15:28:55.108Z"
-closed_at = "n/a"
-labels = ["device:virtio"]
-url = "https://gitlab.com/qemu-project/qemu/-/issues/2014"
-host-os = "Ubuntu 24.04 (Noble)"
-host-arch = "amd64"
-qemu-version = "8.2-rc2 / 8.1.92"
-guest-os = "EDK II"
-guest-arch = "riscv64"
-description = """"""
-reproduce = """1. Build EDK II (edk2-stable202311) for riscv64
-2. Build UEFI SCT (commit 81dfa8d53d4290) for riscv64
-3. Run the UEFI SCT
-4. Observe the message "qemu: virtio: bogus descriptor or out of resources" after which the execution stalls.
-
-The full procedure is described in https://github.com/xypron/sct_release_test
-
-To save time you can call `sct -u` and select only test 'MediaAccessTest\\\\BlockIOProtocolTest'. Run it with `F9`."""
-additional = """virtqueue_map_desc() may be called for a large buffers size `sz`. It will then call dma_memory_map() multiple times in a loop. In address_space_map() `bounce.in_use` is set to `true` on the first call. Each subsequent call is bound to fail.
-
-To verify this is the cause I applied the following diff:
-
-```plaintext
-diff --git a/system/physmem.c b/system/physmem.c
-index a63853a7bc..12b3c2f828 100644
---- a/system/physmem.c
-+++ b/system/physmem.c
-@@ -3151,12 +3151,16 @@ void *address_space_map(AddressSpace *as,
- 
-     if (!memory_access_is_direct(mr, is_write)) {
-         if (qatomic_xchg(&bounce.in_use, true)) {
-+           fprintf(stderr, "bounce.in_use in address_space_map\\n");
-+
-             *plen = 0;
-             return NULL;
-         }
-         /* Avoid unbounded allocations */
-         l = MIN(l, TARGET_PAGE_SIZE);
-         bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, l);
-+       if (!bounce.buffer)
-+           fprintf(stderr, "Out of memory in address_space_map\\n");
-         bounce.addr = addr;
-         bounce.len = l;
-```
-
-and saw this output:
-
-```plaintext
-Logfile: "\\sct\\Log\\MediaAccessTest\\BlockIOProtocolTest0\\ReadBlocks_Conf_0_0_8261
-59D3-04A5-4CCE-8431-344707A8B57A.log"
-Test Started: 12/02/23  08:43a
-------------------------------------------------------------
-Current Device: Acpi(PNP0A03,0)/Pci(3|0)
-Bounce.in_use in address_space_map
-qemu: virtio: bogus descriptor or out of resources
-```
-
-See related bug #850."""