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Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/peripherals/1381846')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/peripherals/1381846 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/peripherals/1381846 b/results/classifier/deepseek-2-tmp/reasoning/peripherals/1381846 new file mode 100644 index 000000000..5e9ce994f --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/peripherals/1381846 @@ -0,0 +1,19 @@ +<think> +Alright, so I need to classify this bug report for QEMU into one of the given categories. Let me read through the problem again. + +The user is reporting that data sent to the parallel port in the guest OS is getting lost when the host buffer fills up. They mention that QEMU writes characters to the chardev but drops them if a write fails with EAGAIN, without initiating flow control via BUSY and ACK signals back to the guest. This causes data loss if the host buffer is too small or if the connected hardware is slow. + +They noticed this issue when using a DOS program with the command line option `-parallel /dev/usb/lp0`. They also mention that they can work around it by buffering via a pipe but consider this a general problem. They suggest wiring up the readiness of the output chardev to the parallel port's ACK and BUSY lines, and signaling an ISA interrupt. + +Now, looking at the categories provided: mistranslation, assembly, other, device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor. + +The issue seems to be related to how QEMU handles I/O operations on a parallel port. The problem arises when data is sent and the buffer overflows, leading to dropped data. This affects the communication between the guest OS's device (parallel port) and the host's hardware (USB printer in this case). + +The user is talking about flow control mechanisms (ACK and BUSY lines), which are part of the parallel port communication protocol. They're suggesting that QEMU should handle these signals properly to prevent data loss, which implies a problem with how peripherals (like the parallel port) are being emulated or managed in QEMU. + +So, considering the categories, 'peripherals' seems appropriate because it's about handling I/O devices and their specific interactions. It's not related to networking, graphics, sockets, etc., but rather the hardware peripherals like the parallel port. +</think> + +The bug report is about data loss when using a parallel port device under QEMU due to buffer overflow and improper flow control. This pertains to how QEMU handles peripheral devices, specifically their communication and I/O management. + +**Answer:** peripherals \ No newline at end of file |