From: Michael Ellerman <mpe@ellerman.id.au>
To: linuxppc-dev@ozlabs.org
Cc: oohall@gmail.com, joel@jms.id.au, dja@axtens.net
Subject: [PATCH v2 10/10] powerpc/configs/skiroot: Enable CONFIG_PRINTK_CALLER
Date: Tue, 21 Jan 2020 15:30:00 +1100 [thread overview]
Message-ID: <20200121043000.16212-10-mpe@ellerman.id.au> (raw)
In-Reply-To: <20200121043000.16212-1-mpe@ellerman.id.au>
This adds the CPU or thread number to printk messages. This can help
decipher 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
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/configs/skiroot_defconfig | 1 +
1 file changed, 1 insertion(+)
v2: New.
diff --git a/arch/powerpc/configs/skiroot_defconfig b/arch/powerpc/configs/skiroot_defconfig
index ca6f1842aa29..ae1d7137a84e 100644
--- a/arch/powerpc/configs/skiroot_defconfig
+++ b/arch/powerpc/configs/skiroot_defconfig
@@ -294,6 +294,7 @@ CONFIG_LIBCRC32C=y
# CONFIG_XZ_DEC_ARMTHUMB is not set
# CONFIG_XZ_DEC_SPARC is not set
CONFIG_PRINTK_TIME=y
+CONFIG_PRINTK_CALLER=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_SLUB_DEBUG_ON=y
CONFIG_SCHED_STACK_END_CHECK=y
--
2.21.1
next prev parent reply other threads:[~2020-01-21 4:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-21 4:29 [PATCH v2 01/10] powerpc/configs: Drop CONFIG_QLGE which moved to staging Michael Ellerman
2020-01-21 4:29 ` [PATCH v2 02/10] powerpc/configs: NET_CADENCE became NET_VENDOR_CADENCE Michael Ellerman
2020-01-21 4:29 ` [PATCH v2 03/10] powerpc/configs: Drop NET_VENDOR_HP which moved to staging Michael Ellerman
2020-01-21 4:29 ` [PATCH v2 04/10] powerpc/configs/skiroot: Drop HID_LOGITECH Michael Ellerman
2020-01-21 4:29 ` [PATCH v2 05/10] powerpc/configs/skiroot: Drop default n CONFIG_CRYPTO_ECHAINIV Michael Ellerman
2020-01-21 4:29 ` [PATCH v2 06/10] powerpc/configs/skiroot: Update for symbol movement only Michael Ellerman
2020-01-21 4:29 ` [PATCH v2 07/10] powerpc/configs/skiroot: Enable security features Michael Ellerman
2020-01-23 13:38 ` Joel Stanley
2020-01-29 1:29 ` Daniel Axtens
2020-01-21 4:29 ` [PATCH v2 08/10] powerpc/configs/skiroot: Disable xmon default & enable reboot on panic Michael Ellerman
2020-01-21 4:29 ` [PATCH v2 09/10] powerpc/configs/skiroot: Enable some more hardening options Michael Ellerman
2020-01-21 4:30 ` Michael Ellerman [this message]
2020-02-04 12:01 ` [PATCH v2 01/10] powerpc/configs: Drop CONFIG_QLGE which moved to staging Michael Ellerman
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