On Wed, 20 May 2020 22:12:57 +1000, Michael Ellerman wrote: > This adds the CPU or thread number to printk messages. This helps a > lot when deciphering concurrent oopses that have been interleaved. > > Example output, of PID1 (T1) triggering a warning: > > [ 1.581678][ T1] WARNING: CPU: 0 PID: 1 at crypto/rsa-pkcs1pad.c:539 > pkcs1pad_verify+0x38/0x140 > [ 1.581681][ T1] Modules linked in: > [ 1.581693][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted > 5.5.0-rc5-gcc-8.2.0-00121-gf84c2e595927-dirty #1515 > [ 1.581700][ T1] NIP: c000000000207d64 LR: c000000000207d3c CTR: > c000000000207d2c > [ 1.581708][ T1] REGS: c0000000fd2e7560 TRAP: 0700 Not tainted > (5.5.0-rc5-gcc-8.2.0-00121-gf84c2e595927-dirty) > [ 1.581712][ T1] MSR: 9000000000029033 <SF,HV,EE,ME,IR,DR,RI,LE> > CR: 44000222 XER: 00040000
Applied to powerpc/next. [1/1] powerpc/configs/64s: Enable CONFIG_PRINTK_CALLER https://git.kernel.org/powerpc/c/598c01b5b2fca3a9de8ad3400edbff98ec22f0b2 cheers