| Summary: | findfs blocks on /dev/fd* when trying to open the non-existant floppy device | ||
|---|---|---|---|
| Product: | Busybox | Reporter: | Ozan Caglayan <ozan> |
| Component: | Other | Assignee: | unassigned |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | busybox-cvs |
| Priority: | P5 | ||
| Version: | 1.14.x | ||
| Target Milestone: | --- | ||
| Hardware: | PC | ||
| OS: | Linux | ||
| Host: | Target: | ||
| Build: | |||
I disabled scanning of devices with major 2 (floppies). Will be in 1.15.x |
Hi, When using busybox versions 1.13.3, 1.13.4, 1.14.1, we're having an annoying problem during rootfs probing. When we call findfs LABEL=X uuidcache_check_device() tries to open every device returned by recursive_action("/dev",..). When the system has no floppy disk drive *but* the controller is enabled in BIOS, or the floppy cable is wrongly attached to the drive: that open() call introduces a long delay, printing I/O errors on dmesg. I think that 582dff051459b1394a48dec1f29a29e2442661a0 may be the problematic commit as it started to scan /dev instead of using /proc/partitions and /proc/cdroms. 1.14.x contains a commit (28ea4298e380d73203890c0f42de68e9798396d8) for fixing findfs probing missing floppy but it doesn't seem to fix the error. I'll workaround the code for skipping the device nodes with major==2 but an upstream solution seems to be required. Thanks, Ozan Caglayan