From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 4.18 091/100] powerpc/numa: Skip onlining a offline node in kdump path
Date: Tue, 16 Oct 2018 00:12:12 -0400 [thread overview]
Message-ID: <20181016041221.135528-91-sashal@kernel.org> (raw)
In-Reply-To: <20181016041221.135528-1-sashal@kernel.org>
From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
[ Upstream commit ac1788cc7da4ce54edcfd2e499afdb0a23d5c41d ]
With commit 2ea626306810 ("powerpc/topology: Get topology for shared
processors at boot"), kdump kernel on shared LPAR may crash.
The necessary conditions are
- Shared LPAR with at least 2 nodes having memory and CPUs.
- Memory requirement for kdump kernel must be met by the first N-1
nodes where there are at least N nodes with memory and CPUs.
Example numactl of such a machine.
$ numactl -H
available: 5 nodes (0,2,5-7)
node 0 cpus:
node 0 size: 0 MB
node 0 free: 0 MB
node 2 cpus:
node 2 size: 255 MB
node 2 free: 189 MB
node 5 cpus: 24 25 26 27 28 29 30 31
node 5 size: 4095 MB
node 5 free: 4024 MB
node 6 cpus: 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23
node 6 size: 6353 MB
node 6 free: 5998 MB
node 7 cpus: 8 9 10 11 12 13 14 15 32 33 34 35 36 37 38 39
node 7 size: 7640 MB
node 7 free: 7164 MB
node distances:
node 0 2 5 6 7
0: 10 40 40 40 40
2: 40 10 40 40 40
5: 40 40 10 40 40
6: 40 40 40 10 20
7: 40 40 40 20 10
Steps to reproduce.
1. Load / start kdump service.
2. Trigger a kdump (for example : echo c > /proc/sysrq-trigger)
When booting a kdump kernel with 2048M:
kexec: Starting switchover sequence.
I'm in purgatory
Using 1TB segments
hash-mmu: Initializing hash mmu with SLB
Linux version 4.19.0-rc5-master+ (srikar@linux-xxu6) (gcc version 4.8.5 (SUSE Linux)) #1 SMP Thu Sep 27 19:45:00 IST 2018
Found initrd at 0xc000000009e70000:0xc00000000ae554b4
Using pSeries machine description
-----------------------------------------------------
ppc64_pft_size = 0x1e
phys_mem_size = 0x88000000
dcache_bsize = 0x80
icache_bsize = 0x80
cpu_features = 0x000000ff8f5d91a7
possible = 0x0000fbffcf5fb1a7
always = 0x0000006f8b5c91a1
cpu_user_features = 0xdc0065c2 0xef000000
mmu_features = 0x7c006001
firmware_features = 0x00000007c45bfc57
htab_hash_mask = 0x7fffff
physical_start = 0x8000000
-----------------------------------------------------
numa: NODE_DATA [mem 0x87d5e300-0x87d67fff]
numa: NODE_DATA(0) on node 6
numa: NODE_DATA [mem 0x87d54600-0x87d5e2ff]
Top of RAM: 0x88000000, Total RAM: 0x88000000
Memory hole size: 0MB
Zone ranges:
DMA [mem 0x0000000000000000-0x0000000087ffffff]
DMA32 empty
Normal empty
Movable zone start for each node
Early memory node ranges
node 6: [mem 0x0000000000000000-0x0000000087ffffff]
Could not find start_pfn for node 0
Initmem setup node 0 [mem 0x0000000000000000-0x0000000000000000]
On node 0 totalpages: 0
Initmem setup node 6 [mem 0x0000000000000000-0x0000000087ffffff]
On node 6 totalpages: 34816
Unable to handle kernel paging request for data at address 0x00000060
Faulting instruction address: 0xc000000008703a54
Oops: Kernel access of bad area, sig: 11 [#1]
LE SMP NR_CPUS=2048 NUMA pSeries
Modules linked in:
CPU: 11 PID: 1 Comm: swapper/11 Not tainted 4.19.0-rc5-master+ #1
NIP: c000000008703a54 LR: c000000008703a38 CTR: 0000000000000000
REGS: c00000000b673440 TRAP: 0380 Not tainted (4.19.0-rc5-master+)
MSR: 8000000002009033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 24022022 XER: 20000002
CFAR: c0000000086fc238 IRQMASK: 0
GPR00: c000000008703a38 c00000000b6736c0 c000000009281900 0000000000000000
GPR04: 0000000000000000 0000000000000000 fffffffffffff001 c00000000b660080
GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000220
GPR12: 0000000000002200 c000000009e51400 0000000000000000 0000000000000008
GPR16: 0000000000000000 c000000008c152e8 c000000008c152a8 0000000000000000
GPR20: c000000009422fd8 c000000009412fd8 c000000009426040 0000000000000008
GPR24: 0000000000000000 0000000000000000 c000000009168bc8 c000000009168c78
GPR28: c00000000b126410 0000000000000000 c00000000916a0b8 c00000000b126400
NIP [c000000008703a54] bus_add_device+0x84/0x1e0
LR [c000000008703a38] bus_add_device+0x68/0x1e0
Call Trace:
[c00000000b6736c0] [c000000008703a38] bus_add_device+0x68/0x1e0 (unreliable)
[c00000000b673740] [c000000008700194] device_add+0x454/0x7c0
[c00000000b673800] [c00000000872e660] __register_one_node+0xb0/0x240
[c00000000b673860] [c00000000839a6bc] __try_online_node+0x12c/0x180
[c00000000b673900] [c00000000839b978] try_online_node+0x58/0x90
[c00000000b673930] [c0000000080846d8] find_and_online_cpu_nid+0x158/0x190
[c00000000b673a10] [c0000000080848a0] numa_update_cpu_topology+0x190/0x580
[c00000000b673c00] [c000000008d3f2e4] smp_cpus_done+0x94/0x108
[c00000000b673c70] [c000000008d5c00c] smp_init+0x174/0x19c
[c00000000b673d00] [c000000008d346b8] kernel_init_freeable+0x1e0/0x450
[c00000000b673dc0] [c0000000080102e8] kernel_init+0x28/0x160
[c00000000b673e30] [c00000000800b65c] ret_from_kernel_thread+0x5c/0x80
Instruction dump:
60000000 60000000 e89e0020 7fe3fb78 4bff87d5 60000000 7c7d1b79 4082008c
e8bf0050 e93e0098 3b9f0010 2fa50000 <e8690060> 38630018 419e0114 7f84e378
---[ end trace 593577668c2daa65 ]---
However a regular kernel with 4096M (2048 gets reserved for crash
kernel) boots properly.
Unlike regular kernels, which mark all available nodes as online,
kdump kernel only marks just enough nodes as online and marks the rest
as offline at boot. However kdump kernel boots with all available
CPUs. With Commit 2ea626306810 ("powerpc/topology: Get topology for
shared processors at boot"), all CPUs are onlined on their respective
nodes at boot time. try_online_node() tries to online the offline
nodes but fails as all needed subsystems are not yet initialized.
As part of fix, detect and skip early onlining of a offline node.
Fixes: 2ea626306810 ("powerpc/topology: Get topology for shared processors at boot")
Reported-by: Pavithra Prakash <pavrampu@in.ibm.com>
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Tested-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/powerpc/mm/numa.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index b5a71baedbc2..d531cbdcba6c 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1215,9 +1215,10 @@ int find_and_online_cpu_nid(int cpu)
* Need to ensure that NODE_DATA is initialized for a node from
* available memory (see memblock_alloc_try_nid). If unable to
* init the node, then default to nearest node that has memory
- * installed.
+ * installed. Skip onlining a node if the subsystems are not
+ * yet initialized.
*/
- if (try_online_node(new_nid))
+ if (!topology_inited || try_online_node(new_nid))
new_nid = first_online_node;
#else
/*
--
2.17.1
next prev parent reply other threads:[~2018-10-16 4:13 UTC|newest]
Thread overview: 100+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 4:10 [PATCH AUTOSEL 4.18 001/100] xfrm: Validate address prefix lengths in the xfrm selector Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 002/100] xfrm6: call kfree_skb when skb is toobig Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 003/100] xfrm: reset transport header back to network header after all input transforms ahave been applied Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 004/100] xfrm: reset crypto_done when iterating over multiple input xfrms Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 005/100] mac80211: Always report TX status Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 006/100] cfg80211: reg: Init wiphy_idx in regulatory_hint_core() Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 007/100] mac80211: fix pending queue hang due to TX_DROP Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 008/100] cfg80211: Address some corner cases in scan result channel updating Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 009/100] mac80211: TDLS: fix skb queue/priority assignment Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 010/100] mac80211: fix TX status reporting for ieee80211s Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 011/100] xfrm: Fix NULL pointer dereference when skb_dst_force clears the dst_entry Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 012/100] ARM: 8799/1: mm: fix pci_ioremap_io() offset check Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 013/100] xfrm: validate template mode Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 014/100] drm/i2c: tda9950: fix timeout counter check Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 015/100] drm/i2c: tda9950: set MAX_RETRIES for errors only Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 016/100] netfilter: bridge: Don't sabotage nf_hook calls from an l3mdev Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 017/100] netfilter: conntrack: get rid of double sizeof Sasha Levin
2018-10-16 4:10 ` [PATCH AUTOSEL 4.18 018/100] arm64: hugetlb: Fix handling of young ptes Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 019/100] ARM: dts: BCM63xx: Fix incorrect interrupt specifiers Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 020/100] net: macb: Clean 64b dma addresses if they are not detected Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 021/100] net: hns: fix for unmapping problem when SMMU is on Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 022/100] soc: fsl: qbman: qman: avoid allocating from non existing gen_pool Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 023/100] soc: fsl: qe: Fix copy/paste bug in ucc_get_tdm_sync_shift() Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 024/100] nl80211: Fix possible Spectre-v1 for NL80211_TXRATE_HT Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 025/100] mac80211_hwsim: fix locking when iterating radios during ns exit Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 026/100] mac80211_hwsim: fix race in radio destruction from netlink notifier Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 027/100] mac80211_hwsim: do not omit multicast announce of first added radio Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 028/100] Bluetooth: SMP: fix crash in unpairing Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 029/100] pxa168fb: prepare the clock Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 030/100] qed: Avoid implicit enum conversion in qed_set_tunn_cls_info Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 031/100] qed: Fix mask parameter in qed_vf_prep_tunn_req_tlv Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 032/100] qed: Avoid implicit enum conversion in qed_roce_mode_to_flavor Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 033/100] bonding: pass link-local packets to bonding master also Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 034/100] bonding: avoid possible dead-lock Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 035/100] qed: Avoid constant logical operation warning in qed_vf_pf_acquire Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 036/100] qed: Avoid implicit enum conversion in qed_iwarp_parse_rx_pkt Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 037/100] bnxt_en: Fix TX timeout during netpoll Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 038/100] nl80211: Fix possible Spectre-v1 for CQM RSSI thresholds Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 039/100] scsi: qedi: Initialize the stats mutex lock Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 040/100] rxrpc: Fix checks as to whether we should set up a new call Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 041/100] rxrpc: Fix RTT gathering Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 042/100] rxrpc: Fix transport sockopts to get IPv4 errors on an IPv6 socket Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 043/100] rxrpc: Fix error distribution Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 044/100] netfilter: nft_set_rbtree: add missing rb_erase() in GC routine Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 045/100] netfilter: avoid erronous array bounds warning Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 046/100] qed: Fix shmem structure inconsistency between driver and the mfw Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 047/100] asix: Check for supported Wake-on-LAN modes Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 048/100] ax88179_178a: " Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 049/100] lan78xx: " Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 050/100] sr9800: " Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 051/100] r8152: Check for supported Wake-on-LAN Modes Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 052/100] smsc75xx: Check for Wake-on-LAN modes Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 053/100] smsc95xx: " Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 054/100] qlcnic: fix Tx descriptor corruption on 82xx devices Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 055/100] i2c: i2c-scmi: fix for i2c_smbus_write_block_data Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 056/100] cfg80211: fix use-after-free in reg_process_hint() Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 057/100] KVM: nVMX: Do not expose MPX VMX controls when guest MPX disabled Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 058/100] KVM: x86: Do not use kvm_x86_ops->mpx_supported() directly Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 059/100] KVM: nVMX: Fix emulation of VM_ENTRY_LOAD_BNDCFGS Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 060/100] net/mlx5: E-Switch, Fix out of bound access when setting vport rate Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 061/100] net/mlx5e: Set vlan masks for all offloaded TC rules Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 062/100] tun: remove unused parameters Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 063/100] tun: initialize napi_mutex unconditionally Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 064/100] r8169: fix network stalls due to missing bit TXCFG_AUTO_FIFO Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 065/100] perf/core: Fix perf_pmu_unregister() locking Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 066/100] perf/x86/intel/uncore: Use boot_cpu_data.phys_proc_id instead of hardcorded physical package ID 0 Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 067/100] perf/ring_buffer: Prevent concurent ring buffer access Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 068/100] perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 069/100] perf/x86/amd/uncore: Set ThreadMask and SliceMask for L3 Cache perf events Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 070/100] thunderbolt: Do not handle ICM events after domain is stopped Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 071/100] thunderbolt: Initialize after IOMMUs Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 072/100] net: fec: fix rare tx timeout Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 073/100] declance: Fix continuation with the adapter identification message Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 074/100] nfp: avoid soft lockups under control message storm Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 075/100] RISCV: Fix end PFN for low memory Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 076/100] Revert "serial: 8250_dw: Fix runtime PM handling" Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 077/100] bonding: fix warning message Sasha Levin
2018-10-16 4:11 ` [PATCH AUTOSEL 4.18 078/100] net: qualcomm: rmnet: Skip processing loopback packets Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 079/100] net: qualcomm: rmnet: Fix incorrect allocation flag in transmit Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 080/100] net: qualcomm: rmnet: Fix incorrect allocation flag in receive path Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 081/100] locking/ww_mutex: Fix runtime warning in the WW mutex selftest Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 082/100] drm/amd/display: Signal hw_done() after waiting for flip_done() Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 083/100] net/usb: cancel pending work when unbinding smsc75xx Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 084/100] team: Forbid enslaving team device to itself Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 085/100] bnxt_en: Fix VNIC reservations on the PF Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 086/100] bnxt_en: Fix enables field in HWRM_QUEUE_COS2BW_CFG request Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 087/100] bnxt_en: get the reduced max_irqs by the ones used by RDMA Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 088/100] net: dsa: b53: Keep CPU port as tagged in all VLANs Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 089/100] be2net: don't flip hw_features when VXLANs are added/deleted Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 090/100] net: phy: phylink: fix SFP interface autodetection Sasha Levin
2018-10-16 4:12 ` Sasha Levin [this message]
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 092/100] net: cxgb3_main: fix a missing-check bug Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 093/100] yam: " Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 094/100] net: mvpp2: Extract the correct ethtype from the skb for tx csum offload Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 095/100] ocfs2: fix crash in ocfs2_duplicate_clusters_by_page() Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 096/100] mm/gup_benchmark: fix unsigned comparison to zero in __gup_benchmark_ioctl Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 097/100] mm/migrate.c: split only transparent huge pages when allocation fails Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 098/100] mm/vmstat.c: fix outdated vmstat_text Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 099/100] x86/paravirt: Fix some warning messages Sasha Levin
2018-10-16 4:12 ` [PATCH AUTOSEL 4.18 100/100] clk: mvebu: armada-37xx-periph: Remove unused var num_parents Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181016041221.135528-91-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mpe@ellerman.id.au \
--cc=srikar@linux.vnet.ibm.com \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).