Bug 10879
| Summary: | wbsd driver causes BUG() in tasklet_action() | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Chuck Ebbert (cebbert) |
| Component: | MMC/SD | Assignee: | Alexey Dobriyan (adobriyan) |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | adobriyan |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.25.4 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | Proposed patch | ||
Created attachment 16423 [details] Proposed patch This is Fedora bug 449817: https://bugzilla.redhat.com/show_bug.cgi?id=449817 argh. patches-via-bugzilla suck. Please just email it in the usual fashion? Me and Pierre Ossman <drzeus@drzeus.cx> and lkml? commit cef33400d0349fb24b6f8b7dea79b66e3144fd8b "mmc: wbsd: initialize tasklets before requesting interrupt" |
Distribution: Fedora Hardware Environment: x86_64 Problem Description: We hit this: kernel/softirq.c:409: if (!test_and_clear_bit(TASKLET_STATE_SCHED, &t->state)) BUG(); Tasklet was initialized after being scheduled, clearing the bit. Steps to reproduce: 1. Build kernel with CONFIG_DEBUG_SHIRQ 2. Boot with an SD card inserted