Hi thanks for reply, I've checked out apanic.c driver and it looks good, but I dont't know, to which mtd partition it will write panic result??
On Oct 18, 8:11 am, yingchun li <[email protected]> wrote: > On Wed, Oct 12, 2011 at 3:22 PM, petter <[email protected]> wrote: > > Hi, I am trying to bring host mode for galaxys (https://github.com/ > > havlenapetr/android_kernel_samsung/tree/hostmode_2) I've ported it > > from galaxys2 source code(it should be similiar hardware). I have some > > mismatch somewhere with my platform in host mode module, because when > > I try to start host mode my kernel freeze and phone just reboot. I > > modified dmesg in toolbox(https://github.com/havlenapetr/ > > android_system_core/commit/ff67144c61b06a3b7dba590ac0ab60a6afbb1da9), > > so I ran dmesg in daemon mode for logging. I add a lot of printk into > > host module, so I hoped that some printk dmesg will catch and put them > > into log file into /data/local/ before kernel freeze, but when phone > > rebooted in my dmesg log file wasn't any log from host mode module, so > > I think that kernel freeze so quickly that dmesg doesn't catch any > > printk from host module. Is therre any way how to catch kernel > > freeze(I think it is PANIC) in kernel and than put stacktrace or > > something somewhere into file, before kernel restarts??? > > You can add the android panic driver, it locat in drivers/misc/apanic.c, > it will save logs to mtd partition and copy to /data/dontpanic/apanic_console > and apanic_threads. > and you must enable android ramconsole driver for apanic, and if kernel > reboot, > /proc/last_kmsg will save your log too. > br, > Yingchun > > > > > > > > > unsubscribe: [email protected] > > website:http://groups.google.com/group/android-kernel -- unsubscribe: [email protected] website: http://groups.google.com/group/android-kernel
