Will Andrews 1d0a1de2aa Fix a kernel panic when unloading isp(4). ... In the current implementation, the isp_kthread() threads never exit. The target threads do have an exit mode from isp_attach(), but it is not invoked from isp_detach(). Ensure isp_detach() notifies threads started for each channel, such that they exit before their parent device softc detaches, and thus before the module does. Otherwise, a page fault panic occurs later in: sysctl_kern_proc sysctl_out_proc kern_proc_out fill_kinfo_proc fill_kinfo_thread strlcpy(kp->ki_wmesg, td->td_wmesg, sizeof(kp->ki_wmesg)); For isp_kthread() (and isp(4) target threads), td->td_wmesg references now-unmapped memory after the module has been unloaded. These threads are typically msleep()ing at the time of unload, but they could also attempt to execute now-unmapped code segments. MFC after: 1 month Sponsored by: Spectra Logic MFSpectraBSD: r1070921 on 2014/06/22 13:01:17		2014-09-18 02:01:36 +00:00
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DriverManual.txt
Hardware.txt
isp_freebsd.c	Fix a kernel panic when unloading isp(4).	2014-09-18 02:01:36 +00:00
isp_freebsd.h	Fix a kernel panic when unloading isp(4).	2014-09-18 02:01:36 +00:00
isp_ioctl.h
isp_library.c
isp_library.h
isp_pci.c
isp_sbus.c
isp_stds.h
isp_target.c
isp_target.h
isp.c
ispmbox.h
ispreg.h
ispvar.h