Christophe Leroy <christophe.le...@c-s.fr> writes: > The purpose of this serie is to activate CONFIG_THREAD_INFO_IN_TASK which > moves the thread_info into task_struct. > > Moving thread_info into task_struct has the following advantages: > - It protects thread_info from corruption in the case of stack > overflows. > - Its address is harder to determine if stack addresses are > leaked, making a number of attacks more difficult. > > Changes since v12: > - Patch 1: Taken comment from Mike (re-introduced the 'panic' in case > memblock allocation fails in setup_64.c > - Patch 1: Added alloc_stack() function in setup_32.c to also panic in case > of allocation failure.
Hi Christophe, I can't get this series to boot on qemu mac99. I'm getting eg: [ 0.981514] NFS: Registering the id_resolver key type [ 0.981752] Key type id_resolver registered [ 0.981868] Key type id_legacy registered [ 0.995711] Unrecoverable exception 0 at 0 (msr=0) [ 0.996091] Oops: Unrecoverable exception, sig: 6 [#1] [ 0.996314] BE PAGE_SIZE=4K MMU=Hash PowerMac [ 0.996617] Modules linked in: [ 0.996869] CPU: 0 PID: 416 Comm: modprobe Not tainted 5.0.0-rc2-gcc-7.3.0-00043-g53f2de798792 #342 [ 0.997138] NIP: 00000000 LR: 00000000 CTR: 00000000 [ 0.997309] REGS: ef237f50 TRAP: 0000 Not tainted (5.0.0-rc2-gcc-7.3.0-00043-g53f2de798792) [ 0.997508] MSR: 00000000 <> CR: 00000000 XER: 00000000 [ 0.997712] [ 0.997712] GPR00: 00000000 ef238000 00000000 00000000 00000000 00000000 00000000 00000000 [ 0.997712] GPR08: 00000000 00000000 00000000 00000000 00000000 00000000 c006477c ef13d8c0 [ 0.997712] GPR16: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 0.997712] GPR24: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 0.998671] NIP [00000000] (null) [ 0.998774] LR [00000000] (null) [ 0.998895] Call Trace: [ 0.999030] Instruction dump: [ 0.999320] XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX [ 0.999546] XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX 60000000 XXXXXXXX XXXXXXXX XXXXXXXX [ 1.000023] ---[ end trace 925ea3419844fe68 ]--- I haven't had time to dig any further. cheers
