I found a minor problem for the linux PPC PowerQuic_II FEC driver. When doing an:
ioctl(.. SIOCGMIIREG ..) or ioctl(.. SIOCSMIIREG ..) the following kernel message pops up: Badness in local_bh_enable at kernel/softirq.c:137 Call Trace: [C102FC80] [C0008E04] (unreliable) [C102FCA0] [C0003608] [C102FCB0] [C0003EB0] [C102FCD0] [C000310C] [C102FD90] [C102FE40] [C102FDA0] [C010794C] [C102FDC0] [C01079C0] [C102FDE0] [C010E7DC] [C102FE00] [C01316C0] [C102FE20] [C0132A08] [C102FEA0] [C0126408] [C102FEC0] [C0064B10] [C102FEE0] [C0064F1C] [C102FF10] [C0064F98] [C102FF40] [C0002AC4] This is because drivers/net/fs_enet/fs_enet-main.c:fs_ioctl disables the interrupts with spin_lock_irqsave after which it calls phy_mii_ioctl. This leads to drivers/net/phy/phy.c:phy_read being called which does spin_lock_bh/spin_unlock_bh. Obviously the spin_unlock_bh enables softirqs and it is correctly complaining irqs are disabled. fs_ioctl and phy_read are used by many others so I'm not sure how to solve this. Therefore I ask this list. Maybe fs_ioctl can use spin_(un)lock but I'm not sure. Anybody has a fix or ideas about this ? --- N. van Bolhuis. -- This message has been scanned for viruses and is believed to be clean _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
