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Date: Sun, 3 May 2015 07:18:28 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Iulia Manda <iulia.manda21@...il.com>
Cc: fengguang.wu@...el.com, Josh Triplett <josh@...htriplett.org>,
"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Linux Memory Management List <linux-mm@...ck.org>,
LKP <lkp@...org>, linux-kernel@...r.kernel.org
Subject: [CONFIG_MULTIUSER] init: error.c:320: Assertion failed in
nih_error_get: CURRENT_CONTEXT->error != NULL
Hi Iulia,
FYI, there are Ubuntu init error messages when CONFIG_MULTIUSER=n.
Since it's not embedded system and hence the target user of
CONFIG_MULTIUSER=n, it might be fine..
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 2813893f8b197a14f1e1ddb04d99bce46817c84a
Author: Iulia Manda <iulia.manda21@...il.com>
AuthorDate: Wed Apr 15 16:16:41 2015 -0700
Commit: Linus Torvalds <torvalds@...ux-foundation.org>
CommitDate: Wed Apr 15 16:35:22 2015 -0700
kernel: conditionally support non-root users, groups and capabilities
There are a lot of embedded systems that run most or all of their
functionality in init, running as root:root. For these systems,
supporting multiple users is not necessary.
This patch adds a new symbol, CONFIG_MULTIUSER, that makes support for
non-root users, non-root groups, and capabilities optional. It is enabled
under CONFIG_EXPERT menu.
When this symbol is not defined, UID and GID are zero in any possible case
and processes always have all capabilities.
The following syscalls are compiled out: setuid, setregid, setgid,
setreuid, setresuid, getresuid, setresgid, getresgid, setgroups,
getgroups, setfsuid, setfsgid, capget, capset.
Also, groups.c is compiled out completely.
In kernel/capability.c, capable function was moved in order to avoid
adding two ifdef blocks.
This change saves about 25 KB on a defconfig build. The most minimal
kernels have total text sizes in the high hundreds of kB rather than
low MB. (The 25k goes down a bit with allnoconfig, but not that much.
The kernel was booted in Qemu. All the common functionalities work.
Adding users/groups is not possible, failing with -ENOSYS.
Bloat-o-meter output:
add/remove: 7/87 grow/shrink: 19/397 up/down: 1675/-26325 (-24650)
[akpm@...ux-foundation.org: coding-style fixes]
Signed-off-by: Iulia Manda <iulia.manda21@...il.com>
Reviewed-by: Josh Triplett <josh@...htriplett.org>
Acked-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Tested-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Reviewed-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
+----------------------------------------+------------+------------+------------+
| | c79574abe2 | 2813893f8b | 64fb1d0e97 |
+----------------------------------------+------------+------------+------------+
| boot_successes | 114 | 0 | 1 |
| boot_failures | 6 | 30 | 11 |
| Unexpected_close,not_stopping_watchdog | 5 | 2 | |
| BUG:kernel_test_crashed | 1 | | |
| Assertion_failed | 0 | 30 | 11 |
| Out_of_memory:Kill_process | 0 | 5 | 1 |
| backtrace:vm_mmap_pgoff | 0 | 2 | 1 |
| backtrace:SyS_mmap_pgoff | 0 | 2 | 1 |
| backtrace:SyS_mmap | 0 | 2 | 1 |
| backtrace:do_sys_open | 0 | 1 | |
| backtrace:SyS_open | 0 | 1 | |
+----------------------------------------+------------+------------+------------+
mountall: Event failed
[ 2.283321] init: Failed to create pty - disabling logging for job
[ 2.284308] init: Temporary process spawn error: No space left on device
[ 2.298763] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.300054] init: Caught abort, core dumped
[ 2.300861] init: Error while reading from descriptor: Bad file descriptor
[ 2.301510] init: mounted-tmp main process (129) terminated with status 6
mountall: Event failed
[ 2.309699] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.310985] init: Caught abort, core dumped
[ 2.315140] pt_chown (137) used greatest stack depth: 13152 bytes left
[ 2.315795] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.317078] init: Caught abort, core dumped
[ 2.317839] init: Error while reading from descriptor: Bad file descriptor
[ 2.318457] init: Error while reading from descriptor: Bad file descriptor
[ 2.319085] init: mounted-run main process (133) terminated with status 6
[ 2.319979] init: container-detect pre-start process (136) terminated with status 6
mountall: Event failed
[ 2.342582] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.344049] init: Caught abort, core dumped
[ 2.348327] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.349951] init: Caught abort, core dumped
[ 2.351178] init: procps (virtual-filesystems) main process (141) terminated with status 6
[ 2.352579] init: upstart-udev-bridge main process (144) terminated with status 6
[ 2.353511] init: upstart-udev-bridge main process ended, respawning
[ 2.358992] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.360680] init: Caught abort, core dumped
[ 2.362180] init: udev main process (147) terminated with status 6
[ 2.362983] init: udev main process ended, respawning
[ 2.368861] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.370628] init: Caught abort, core dumped
[ 2.373263] init: Error while reading from descriptor: Bad file descriptor
[ 2.374299] init: module-init-tools main process (150) terminated with status 6
[ 2.385182] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.386982] init: Caught abort, core dumped
[ 2.394122] init: error.c:320: Assertion failed in nih_error_get: CURRENT_CONTEXT->error != NULL
[ 2.395884] init: Caught abort, core dumped
[ 2.397272] init: plymouth-log main process (155) terminated with status 6
[ 2.398418] init: flush-early-job-log main process (158) terminated with status 6
git bisect start 8608976e2bc9c1df090e1b346c65ec1405e9d03d v4.0 --
git bisect good d613896926be608796bb80454256a07b55fe0e87 # 09:07 30+ 3 Merge tag 'upstream-4.1-rc1' of git://git.infradead.org/linux-ubifs
git bisect bad 0e212e0a720601fabda102f7998d27625f9e144a # 09:09 0- 1 checkpatch: don't ask for asm/file.h to linux/file.h unconditionally
git bisect bad d38df34e3f0ea1e65c7db5d33d132dc14da0009a # 09:12 0- 16 hwmon: (ina2xx) replace ina226_avg_bits() with find_closest()
git bisect bad 34c9a0ffc75ad25b6a60f61e27c4a4b1189b8085 # 09:14 0- 2 crypto: fix broken crypto_register_instance() module handling
git bisect good 6d50ff91d9780263160262daeb6adfdda8ddbc6c # 09:21 30+ 1 Merge tag 'locks-v4.1-1' of git://git.samba.org/jlayton/linux
git bisect good e7c82412433a8039616c7314533a0a1c025d99bf # 09:26 30+ 2 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds
git bisect bad eea3a00264cf243a28e4331566ce67b86059339d # 09:28 0- 10 Merge branch 'akpm' (patches from Andrew)
git bisect good 248ca1b053c82fa22427d22b33ac51a24c88a86d # 09:31 30+ 0 zsmalloc: add fullness into stat
git bisect bad 3ea8d440a86b85c63c2bb7f73988626e682db5f0 # 09:34 0- 30 lib/vsprintf.c: eliminate duplicate hex string array
git bisect good 160a117f0864871ae1bab26554a985a1d2861afd # 09:39 30+ 3 zsmalloc: remove extra cond_resched() in __zs_compact
git bisect bad 96831c0a6738f88f89e7012f4df0a747514af0a0 # 09:41 0- 4 kernel/resource.c: remove deprecated __check_region() and friends
git bisect good 23f40a94d860449f39f00c3350bf850d15983e63 # 09:44 30+ 3 include/linux: remove empty conditionals
git bisect good c79574abe2baddf569532e7e430e4977771dd25c # 09:47 30+ 2 lib/test-hexdump.c: fix initconst confusion
git bisect bad 2813893f8b197a14f1e1ddb04d99bce46817c84a # 09:50 0- 4 kernel: conditionally support non-root users, groups and capabilities
# first bad commit: [2813893f8b197a14f1e1ddb04d99bce46817c84a] kernel: conditionally support non-root users, groups and capabilities
git bisect good c79574abe2baddf569532e7e430e4977771dd25c # 09:52 90+ 6 lib/test-hexdump.c: fix initconst confusion
# extra tests on HEAD of linus/master
git bisect bad 64fb1d0e975e92e012802d371e417266d6531676 # 09:52 0- 11 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
# extra tests on tree/branch linus/master
git bisect bad 64887b6882de36069c18ef2d9623484d6db7cd3a # 09:54 0- 6 Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
# extra tests on tree/branch linus/master
git bisect bad 64887b6882de36069c18ef2d9623484d6db7cd3a # 09:54 0- 6 Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
# extra tests on tree/branch next/master
git bisect bad ba5ed02bec86490224b8d162ef1911869516d51e # 09:57 0- 16 Add linux-next specific files for 20150501
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
initrd=quantal-core-x86_64.cgz
wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu kvm64
-kernel $kernel
-initrd $initrd
-m 300
-smp 2
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
rd.udev.log-priority=err
systemd.log_target=journal
systemd.log_level=warning
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
Thanks,
Fengguang
View attachment "dmesg-quantal-ivb41-35:20150502095005:x86_64-randconfig-ib0-04200039:4.0.0-05819-g2813893:16" of type "text/plain" (79590 bytes)
View attachment "config-4.0.0-05819-g2813893" of type "text/plain" (63589 bytes)
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