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authorChristian Krinitsin <mail@krinitsin.com>2025-05-21 21:21:26 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-05-21 21:21:26 +0200
commit4b927bc37359dec23f67d3427fc982945f24f404 (patch)
tree245449ef9146942dc7fffd0235b48b7e70a00bf2 /gitlab/issues/target_missing/host_missing/accel_missing/2125.toml
parentaa8bd79cec7bf6790ddb01d156c2ef2201abbaab (diff)
downloademulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.tar.gz
emulator-bug-study-4b927bc37359dec23f67d3427fc982945f24f404.zip
add gitlab issues in toml format
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+id = 2125
+title = "The value of 'tx_queue_size' is set to only 256 in the network device option on qemu 8.2."
+state = "closed"
+created_at = "2024-01-26T07:48:51.512Z"
+closed_at = "2024-02-05T16:28:01.966Z"
+labels = []
+url = "https://gitlab.com/qemu-project/qemu/-/issues/2125"
+host-os = "Ubuntu 22.04.1 LTS"
+host-arch = "x86_64"
+qemu-version = "v8.2.0"
+guest-os = "whole guest os"
+guest-arch = "x86"
+description = """I have been using the 'tx_queue_size' value set to 1024 in the network device option on qemu 7.2 without any issues.\\
+but when I upgrade to qemu 8.2 I got this error message (and also qemu 8.1) and I cannot use any value other than 256
+```
+qemu-system-x86_64: -device virtio-net-pci,mq=on,vectors=6,netdev=hostnet_34,id=dpdk_34,mac=F2:20:AF:40:12:65,bus=bridge,addr=0x7,page-per-vq=on,rx_queue_size=1024,tx_queue_size=1024,mrg_rxbuf=on,disable-legacy=on,disable-modern=off,host_mtu=1500,csum=on,guest_csum=on,host_tso4=on,host_tso6=on: Invalid tx_queue_size (= 1024), must be a power of 2 between 256 and 256
+```
+
+and I think virtqueue max size value has never changed from 1024.\\
+https://gitlab.com/qemu-project/qemu/-/blob/staging-8.2/include/hw/virtio/virtio.h?ref_type=heads#L62"""
+reproduce = """1. boot qemu-system-x86_64 on qemu 8.2 and network device option set tx_queue_size value over 256"""
+additional = """- I'm using hardware vDPA offloading with mellanox NIC card."""