From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, John Allen <jallen@linux.ibm.com>,
Haren Myneni <haren@us.ibm.com>,
Nathan Fontenot <nfont@linux.vnet.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 45/92] powerpc/pseries: Remove prrn_work workqueue
Date: Thu, 18 Apr 2019 19:57:03 +0200 [thread overview]
Message-ID: <20190418160434.089464257@linuxfoundation.org> (raw)
In-Reply-To: <20190418160430.325165109@linuxfoundation.org>
[ Upstream commit cd24e457fd8b2d087d9236700c8d2957054598bf ]
When a PRRN event is received we are already running in a worker
thread. Instead of spawning off another worker thread on the prrn_work
workqueue to handle the PRRN event we can just call the PRRN handler
routine directly.
With this update we can also pass the scope variable for the PRRN
event directly to the handler instead of it being a global variable.
This patch fixes the following oops mnessage we are seeing in PRRN testing:
Oops: Bad kernel stack pointer, sig: 6 [#1]
SMP NR_CPUS=2048 NUMA pSeries
Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc fscache binfmt_misc reiserfs vfat fat rpadlpar_io(X) rpaphp(X) tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag af_packet xfs libcrc32c dm_service_time ibmveth(X) ses enclosure scsi_transport_sas rtc_generic btrfs xor raid6_pq sd_mod ibmvscsi(X) scsi_transport_srp ipr(X) libata sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4
Supported: Yes, External 54
CPU: 7 PID: 18967 Comm: kworker/u96:0 Tainted: G X 4.4.126-94.22-default #1
Workqueue: pseries hotplug workque pseries_hp_work_fn
task: c000000775367790 ti: c00000001ebd4000 task.ti: c00000070d140000
NIP: 0000000000000000 LR: 000000001fb3d050 CTR: 0000000000000000
REGS: c00000001ebd7d40 TRAP: 0700 Tainted: G X (4.4.126-94.22-default)
MSR: 8000000102081000 <41,VEC,ME5 CR: 28000002 XER: 20040018 4
CFAR: 000000001fb3d084 40 419 1 3
GPR00: 000000000000000040000000000010007 000000001ffff400 000000041fffe200
GPR04: 000000000000008050000000000000000 000000001fb15fa8 0000000500000500
GPR08: 000000000001f40040000000000000001 0000000000000000 000005:5200040002
GPR12: 00000000000000005c000000007a05400 c0000000000e89f8 000000001ed9f668
GPR16: 000000001fbeff944000000001fbeff94 000000001fb545e4 0000006000000060
GPR20: ffffffffffffffff4ffffffffffffffff 0000000000000000 0000000000000000
GPR24: 00000000000000005400000001fb3c000 0000000000000000 000000001fb1b040
GPR28: 000000001fb240004000000001fb440d8 0000000000000008 0000000000000000
NIP [0000000000000000] 5 (null)
LR [000000001fb3d050] 031fb3d050
Call Trace: 4
Instruction dump: 4 5:47 12 2
XXXXXXXX XXXXXXXX XXXXX4XX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX XXXXX5XX XXXXXXXX 60000000 60000000 60000000 60000000
---[ end trace aa5627b04a7d9d6b ]--- 3NMI watchdog: BUG: soft lockup - CPU#27 stuck for 23s! [kworker/27:0:13903]
Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc fscache binfmt_misc reiserfs vfat fat rpadlpar_io(X) rpaphp(X) tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag af_packet xfs libcrc32c dm_service_time ibmveth(X) ses enclosure scsi_transport_sas rtc_generic btrfs xor raid6_pq sd_mod ibmvscsi(X) scsi_transport_srp ipr(X) libata sg dm_multipath dm_mod scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_mod autofs4
Supported: Yes, External
CPU: 27 PID: 13903 Comm: kworker/27:0 Tainted: G D X 4.4.126-94.22-default #1
Workqueue: events prrn_work_fn
task: c000000747cfa390 ti: c00000074712c000 task.ti: c00000074712c000
NIP: c0000000008002a8 LR: c000000000090770 CTR: 000000000032e088
REGS: c00000074712f7b0 TRAP: 0901 Tainted: G D X (4.4.126-94.22-default)
MSR: 8000000100009033 <SF,EE,ME,IR,DR,RI,LE> CR: 22482044 XER: 20040000
CFAR: c0000000008002c4 SOFTE: 1
GPR00: c000000000090770 c00000074712fa30 c000000000f09800 c000000000fa1928 6:02
GPR04: c000000775f5e000 fffffffffffffffe 0000000000000001 c000000000f42db8
GPR08: 0000000000000001 0000000080000007 0000000000000000 0000000000000000
GPR12: 8006210083180000 c000000007a14400
NIP [c0000000008002a8] _raw_spin_lock+0x68/0xd0
LR [c000000000090770] mobility_rtas_call+0x50/0x100
Call Trace: 59 5
[c00000074712fa60] [c000000000090770] mobility_rtas_call+0x50/0x100
[c00000074712faf0] [c000000000090b08] pseries_devicetree_update+0xf8/0x530
[c00000074712fc20] [c000000000031ba4] prrn_work_fn+0x34/0x50
[c00000074712fc40] [c0000000000e0390] process_one_work+0x1a0/0x4e0
[c00000074712fcd0] [c0000000000e0870] worker_thread+0x1a0/0x6105:57 2
[c00000074712fd80] [c0000000000e8b18] kthread+0x128/0x150
[c00000074712fe30] [c0000000000096f8] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
2c090000 40c20010 7d40192d 40c2fff0 7c2004ac 2fa90000 40de0018 5:540030 3
e8010010 ebe1fff8 7c0803a6 4e800020 <7c210b78> e92d0000 89290009 792affe3
Signed-off-by: John Allen <jallen@linux.ibm.com>
Signed-off-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/kernel/rtasd.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c
index 0f0b1b2f3b60..7caeae73348d 100644
--- a/arch/powerpc/kernel/rtasd.c
+++ b/arch/powerpc/kernel/rtasd.c
@@ -274,27 +274,16 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal)
}
#ifdef CONFIG_PPC_PSERIES
-static s32 prrn_update_scope;
-
-static void prrn_work_fn(struct work_struct *work)
+static void handle_prrn_event(s32 scope)
{
/*
* For PRRN, we must pass the negative of the scope value in
* the RTAS event.
*/
- pseries_devicetree_update(-prrn_update_scope);
+ pseries_devicetree_update(-scope);
numa_update_cpu_topology(false);
}
-static DECLARE_WORK(prrn_work, prrn_work_fn);
-
-static void prrn_schedule_update(u32 scope)
-{
- flush_work(&prrn_work);
- prrn_update_scope = scope;
- schedule_work(&prrn_work);
-}
-
static void handle_rtas_event(const struct rtas_error_log *log)
{
if (rtas_error_type(log) != RTAS_TYPE_PRRN || !prrn_is_enabled())
@@ -303,7 +292,7 @@ static void handle_rtas_event(const struct rtas_error_log *log)
/* For PRRN Events the extended log length is used to denote
* the scope for calling rtas update-nodes.
*/
- prrn_schedule_update(rtas_error_extended_log_length(log));
+ handle_prrn_event(rtas_error_extended_log_length(log));
}
#else
--
2.19.1
next prev parent reply other threads:[~2019-04-18 18:04 UTC|newest]
Thread overview: 102+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-18 17:56 [PATCH 4.14 00/92] 4.14.113-stable review Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 01/92] ARC: u-boot args: check that magic number is correct Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 02/92] arc: hsdk_defconfig: Enable CONFIG_BLK_DEV_RAM Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 03/92] perf/core: Restore mmap record type correctly Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 04/92] ext4: add missing brelse() in add_new_gdb_meta_bg() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 05/92] ext4: report real fs size after failed resize Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 06/92] ALSA: echoaudio: add a check for ioremap_nocache Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 07/92] ALSA: sb8: add a check for request_region Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 08/92] auxdisplay: hd44780: Fix memory leak on ->remove() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 09/92] IB/mlx4: Fix race condition between catas error reset and aliasguid flows Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 10/92] mmc: davinci: remove extraneous __init annotation Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 11/92] ALSA: opl3: fix mismatch between snd_opl3_drum_switch definition and declaration Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 12/92] thermal/intel_powerclamp: fix __percpu declaration of worker_data Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 13/92] thermal: bcm2835: Fix crash in bcm2835_thermal_debugfs Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 14/92] thermal/int340x_thermal: Add additional UUIDs Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 15/92] thermal/int340x_thermal: fix mode setting Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 16/92] thermal/intel_powerclamp: fix truncated kthread name Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 17/92] scsi: iscsi: flush running unbind operations when removing a session Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 18/92] x86/mm: Dont leak kernel addresses Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 19/92] tools/power turbostat: return the exit status of a command Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 20/92] perf list: Dont forget to drop the reference to the allocated thread_map Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 21/92] perf config: Fix an error in the config template documentation Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 22/92] perf config: Fix a memory leak in collect_config() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 23/92] perf build-id: Fix memory leak in print_sdt_events() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 24/92] perf top: Fix error handling in cmd_top() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 25/92] perf hist: Add missing map__put() in error case Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 26/92] perf evsel: Free evsel->counts in perf_evsel__exit() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 27/92] perf tests: Fix a memory leak of cpu_map object in the openat_syscall_event_on_all_cpus test Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 28/92] perf tests: Fix memory leak by expr__find_other() in test__expr() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 29/92] perf tests: Fix a memory leak in test__perf_evsel__tp_sched_test() Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 30/92] irqchip/mbigen: Dont clear eventid when freeing an MSI Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 31/92] x86/hpet: Prevent potential NULL pointer dereference Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 32/92] x86/cpu/cyrix: Use correct macros for Cyrix calls on Geode processors Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 33/92] drm/nouveau/debugfs: Fix check of pm_runtime_get_sync failure Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 34/92] iommu/vt-d: Check capability before disabling protected memory Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 35/92] x86/hw_breakpoints: Make default case in hw_breakpoint_arch_parse() return an error Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 36/92] fix incorrect error code mapping for OBJECTID_NOT_FOUND Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 37/92] ext4: prohibit fstrim in norecovery mode Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 38/92] gpio: pxa: handle corner case of unprobed device Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 39/92] rsi: improve kernel thread handling to fix kernel panic Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 40/92] 9p: do not trust pdu content for stat item size Greg Kroah-Hartman
2019-04-18 17:56 ` [PATCH 4.14 41/92] 9p locks: add mount option for lock retry interval Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 42/92] f2fs: fix to do sanity check with current segment number Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 43/92] netfilter: xt_cgroup: shrink size of v2 path Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 44/92] serial: uartps: console_setup() cant be placed to init section Greg Kroah-Hartman
2019-04-18 17:57 ` Greg Kroah-Hartman [this message]
2019-04-18 17:57 ` [PATCH 4.14 46/92] media: au0828: cannot kfree dev before usb disconnect Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 47/92] HID: i2c-hid: override HID descriptors for certain devices Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 48/92] ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platforms Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 50/92] ACPI / SBS: Fix GPE storm on recent MacBookPros Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 51/92] KVM: nVMX: restore host state in nested_vmx_vmexit for VMFail Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 52/92] compiler.h: update definition of unreachable() Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 53/92] cifs: fallback to older infolevels on findfirst queryinfo retry Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 54/92] kernel: hung_task.c: disable on suspend Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 55/92] crypto: sha256/arm - fix crash bug in Thumb2 build Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 56/92] crypto: sha512/arm " Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 57/92] iommu/dmar: Fix buffer overflow during PCI bus notification Greg Kroah-Hartman
2019-04-18 18:14 ` Gustavo A. R. Silva
2019-04-18 17:57 ` [PATCH 4.14 58/92] soc/tegra: pmc: Drop locking from tegra_powergate_is_powered() Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 59/92] lkdtm: Print real addresses Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 60/92] lkdtm: Add tests for NULL pointer dereference Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 61/92] drm/panel: panel-innolux: set display off in innolux_panel_unprepare Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 62/92] crypto: axis - fix for recursive locking from bottom half Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 63/92] Revert "ACPI / EC: Remove old CLEAR_ON_RESUME quirk" Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 64/92] coresight: cpu-debug: Support for CA73 CPUs Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 65/92] drm/nouveau/volt/gf117: fix speedo readout register Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 66/92] ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 67/92] drm/amdkfd: use init_mqd function to allocate object for hid_mqd (CI) Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 68/92] appletalk: Fix use-after-free in atalk_proc_exit Greg Kroah-Hartman
2019-04-18 20:14 ` Sudip Mukherjee
2019-04-19 13:39 ` Sasha Levin
2019-04-18 17:57 ` [PATCH 4.14 69/92] lib/div64.c: off by one in shift Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 70/92] include/linux/swap.h: use offsetof() instead of custom __swapoffset macro Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 71/92] bpf: fix use after free in bpf_evict_inode Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 72/92] dm: disable CRYPTO_TFM_REQ_MAY_SLEEP to fix a GFP_KERNEL recursion deadlock Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 73/92] bpf: reduce verifier memory consumption Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 74/92] bpf: fix verifier memory leaks Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 75/92] bpf: fix verifier NULL pointer dereference Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 76/92] bpf: fix stack state printing in verifier log Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 77/92] bpf: move {prev_,}insn_idx into verifier env Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 78/92] bpf: move tmp variable into ax register in interpreter Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 79/92] bpf: enable access to ax register also from verifier rewrite Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 80/92] bpf: restrict map value pointer arithmetic for unprivileged Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 81/92] bpf: restrict stack " Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 82/92] bpf: restrict unknown scalars of mixed signed bounds " Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 83/92] bpf: fix check_map_access smin_value test when pointer contains offset Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 84/92] bpf: prevent out of bounds speculation on pointer arithmetic Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 85/92] bpf: fix sanitation of alu op with pointer / scalar type from different paths Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 86/92] bpf: fix inner map masking to prevent oob under speculation Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 87/92] bpf: do not restore dst_reg when cur_state is freed Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 88/92] bpf: fix sanitation rewrite in case of non-pointers Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 89/92] bpf: Fix selftests are changes for CVE 2019-7308 Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 90/92] tools include: Adopt linux/bits.h Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 91/92] net: stmmac: Set dma ring length before enabling the DMA Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 92/92] [PATCH 4.19.y 2/2] mm: hide incomplete nr_indirectly_reclaimable in sysfs Greg Kroah-Hartman
2019-04-19 7:00 ` [PATCH 4.14 00/92] 4.14.113-stable review Naresh Kamboju
2019-04-19 10:08 ` Jon Hunter
2019-04-19 10:08 ` Jon Hunter
2019-04-19 14:23 ` shuah
2019-04-19 19:39 ` Guenter Roeck
-- strict thread matches above, loose matches on Subject: below --
2019-04-18 17:57 [4.14,49/92] usbip: fix vhci_hcd controller counting Greg Kroah-Hartman
2019-04-18 17:57 ` [PATCH 4.14 49/92] " Greg Kroah-Hartman
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