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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
| commit | d0c85e36e4de67af628d54e9ab577cc3fad7796a (patch) | |
| tree | f8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/deepseek-2/reasoning/manual-review/1927 | |
| parent | 7f4364274750eb8cb39a3e7493132fca1c01232e (diff) | |
| download | qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip | |
add deepseek and gemma results
Diffstat (limited to 'results/classifier/deepseek-2/reasoning/manual-review/1927')
| -rw-r--r-- | results/classifier/deepseek-2/reasoning/manual-review/1927 | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/reasoning/manual-review/1927 b/results/classifier/deepseek-2/reasoning/manual-review/1927 new file mode 100644 index 000000000..d2bc4d02e --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/manual-review/1927 @@ -0,0 +1,71 @@ +<think> +Okay, so I've got this problem where my Sparc64 kernel is panicking with a fatal exception. The user provided the panic message and some steps to reproduce it, along with an attached tar file containing their config, vmlinuz, and modules. + +First, I need to understand what's causing the panic. Looking at the stack trace, the error occurs during the initialization of the kernel, specifically in do_one_initcall. It seems like a subsystem is failing to initialize properly. The call chain goes through shpc_probe, pci_device_probe, really_probe, and so on, which points towards a PCI device probe issue. + +The user mentioned adding a config where a PCI bridge is installed in slot 1, 2, or 3, with virtio-slot-pci taking the first slot. They also created an empty file using fallocate, but I'm not sure if that's directly related to the panic. + +I should check their .config file to see if there are any issues with how PCI devices are being handled. Maybe they have conflicting drivers or misconfigured options. Also, looking at the modules might show which ones are causing problems during probing. + +Another angle is the kernel taint message. Disabling lock debugging due to kernel taint suggests that the kernel was tainted before this panic, possibly from a previous issue or loaded modules. + +I should also look into the specific drivers involved in the probe chain: shpc (Scsi Host Adapter PCI), which might be conflicting with other drivers or not properly detecting the hardware. + +Since they're using QEMU for Sparc64, maybe there's an issue with how the virtualized hardware is set up. The pci-bridge configuration in their kernel might not align with what QEMU provides, leading to a probe failure and subsequent panic. + +I think compiling the kernel again after checking these config options and ensuring that all drivers are correctly configured could help. They should also verify if the virtio-pci device is properly recognized before attempting to create files with fallocate. +</think> + +The error you're encountering is a **Kernel Panic** due to a fatal exception during the initialization of your Sparc64 kernel. The stack trace points to issues occurring during the probe of a PCI device, specifically related to SCSI host adapter (SHPC) and PCI device probing. + +### Key Observations: +1. **Fatal Exception During Kernel Initialization:** + - The panic occurs in `do_one_initcall`, which suggests that an initialization function for a subsystem failed. + - The call trace shows involvement of functions like `shpc_probe`, `pci_device_probe`, and `really_probe`, indicating the issue is related to PCI device probing. + +2. **PCI Device Configuration:** + - You mentioned adding a config where a PCI bridge is installed in slots 1, 2, or 3. + - The `virtio-slot-pci` takes the first slot. Ensure that your configuration correctly handles multiple PCI devices and their mappings. + +3. **Kernel Taint Message:** + - The message "Disabling lock debugging due to kernel taint" suggests that the kernel was already tainted before this panic occurred. This could be due to a previous issue or loaded modules causing instability. + +4. **Instruction DUMP and Call Trace:** + - The instruction dump shows hexadecimal values, which might correspond to specific instructions in the kernel code. + - The call trace indicates that the panic occurs during the initialization of device drivers, particularly for SCSI host adapters (SHPC). + +### Possible Causes: +1. **Conflict Between Drivers:** + - There could be a conflict between the SHPC driver and other PCI drivers. + - Ensure that all drivers are correctly configured in your `.config` file. + +2. **PCI Configuration Issues:** + - The way you're configuring the PCI bridge and devices might not align with how QEMU emulates them. + - Check if the virtio-pci device is being properly recognized by the kernel. + +3. **Kernel Tainting:** + - If the kernel was already tainted before this panic, it could indicate an underlying issue with module loading or previous initialization steps. + +### Steps to Troubleshoot: +1. **Check Kernel Configuration:** + - Ensure that all relevant options for PCI and SHPC drivers are correctly configured in your `.config` file. + - Look for any warnings or errors during kernel compilation that might indicate issues with the driver implementations. + +2. **Inspect Device Probing Logs:** + - Before attempting to create files with `fallocate`, check if the device probing is successful by examining kernel logs. + - Use tools like `dmesg` (if available) to look for any errors or warnings related to PCI devices and SHPC. + +3. **Verify QEMU Configuration:** + - Ensure that the virtualized hardware configuration aligns with how your kernel expects it. + - Check if the pci-bridge is properly configured in QEMU and if thevirtio-pci device is correctly assigned to slot 1. + +4. **Reproduce Without File Creation:** + - Try booting the kernel without creating the empty file using `fallocate` to isolate whether the panic occurs earlier during initialization. + - If the panic persists, it's unrelated to file creation and points to an earlier issue in the boot process. + +5. **Check for Known Issues:** + - Look up if there are known issues with SHPC or PCI device probing in your version of the Sparc64 kernel. + - Search for similar errors in forums, bug trackers, or community discussions related to Sparc64 and QEMU. + +### Conclusion: +The kernel panic is likely caused by an issue during the initialization of aPCI device driver, specifically involving SHPC. To resolve this, carefully review your kernel configuration, ensure proper device probing, and verify that your QEMU setup matches the expected hardware configuration. Compiling the kernel again after addressing these configurations should help determine if the issue persists. \ No newline at end of file |