On Tue, Feb 24, 2015 at 4:46 AM, Michal Šmucr <msmucr@xxxxxxxxx> wrote: > Hello to all, > > I'm getting kernel panics, when I'm using kernel 3.18.7 with recently > released rt1 and rt2 patches. Platform is x86_64. > It happens only when root filesystem is at SDHC card. > At 3.14.31-rt28 or recent plain vanilla kernels I haven't spotted this > issue. > > Boot panic is possible to workaround by adding kernel parameter: > "scsi_mod.scan=sync", but it still happens during initrd rebuild using > update-initramfs at Debian Jessie. > > Log from panic is attached. Seems sdhci_irq is operating on a (non-raw) host->lock and you are running that code in hard IRQ context, which will trigger the alarm for operating on a sleeping lock while in atomic context. (i.e code is not currently -rt friendly as-is). > > Thanks for any comment regarding issue or better way for bug-report, In the future, putting the log lines in line (vs attachment) makes it easier to reply and comment - meaning more people will look at the report. P. -- > > Michal -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
