Updated cloud-init.md with GitHub Markdown syntax - #14
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# The first commit's message is: changed location of cloud-init.md # This is the 2nd commit message: changed location of cloud-init.md # This is the 3rd commit message: Updated FAQ with correct Markdown formatting and fixed some spelling errors # This is the 4th commit message: Updated the dockerfiles.md # This is the 5th commit message: Fixing typo in VMware (lowercase 'w') # This is the 6th commit message: Add COPYING file including contents of GPLv2 # This is the 7th commit message: Doc fixes - Redo of README - Added Photon Logo - Moved docs from root to docs/ folder - Moved build instructions from readme.md to docs/build-photon.md # This is the 8th commit message: Added docs link # This is the 9th commit message: Add CREDITS
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changed location of cloud-init.md
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Yeah, this one is screwed. Closing and opening a new one. |
gerrit-photon
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Feb 19, 2025
0010-RPS-flow-balance.patch introduces interrupt unsafe spin_lock(<OBJ>)
while reading /proc/net/softnet_stat. While holding <OBJ> lock in
softnet_seq_show(), net RX interrupt can occure. Interrupt handler will also try to grab
a lock on the same <OBJ> which is already held the this CPU. It will cause
this CPU to deadlock and eventually entire network stack and even entire
system to stuck.
PID: 15389 TASK: ffff9cbd18543e80 CPU: 2 COMMAND: "python"
[exception RIP: queued_spin_lock_slowpath+55]
RIP: ffffffffb1ba1037 RSP: ffffb24640138d80 RFLAGS: 00000002
RAX: 0000000000000001 RBX: ffff9cbdbcdb2664 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff9cbdbcdb2664
RBP: ffffb24640138d60 R8: 0000000000000000 R9: 0000000000000000
R10: ffffb24640138d80 R11: ffffb24640138d80 R12: ffff9cbdbcdb2540
R13: ffff9cbd04802000 R14: ffff9cbdbcdb2664 R15: 0000000000032540
#0 [ffffb24640138d88] _raw_spin_lock_irqsave at ffffffffb1ba0c1a
#1 [ffffb24640138da0] enqueue_to_backlog at ffffffffb1960413
#2 [ffffb24640138e00] netif_receive_skb_list_internal at ffffffffb196a9c6
#3 [ffffb24640138e78] napi_complete_done at ffffffffb196af84
#4 [ffffb24640138ea8] vmxnet3_poll_rx_only at ffffffffb18c95b9
#5 [ffffb24640138ed8] __napi_poll at ffffffffb196b0ce
#6 [ffffb24640138f08] net_rx_action at ffffffffb196b5c3
#7 [ffffb24640138f78] handle_softirqs at ffffffffb10f89e2
#8 [ffffb24640138fd0] __irq_exit_rcu at ffffffffb10f8be0
#9 [ffffb24640138fe0] irq_exit_rcu at ffffffffb10f930e
#10 [ffffb24640138ff0] common_interrupt at ffffffffb1b8c87e
Change-Id: Iae378d80d9947de39b6d67651a4ea41b33e958aa
--- <IRQ stack> ---
#11 [ffffb24645f4fcf8] asm_common_interrupt at ffffffffb1c00ea7
[exception RIP: _raw_spin_lock+16]
RIP: ffffffffb1ba0f10 RSP: ffffb24645f4fda0 RFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff9cbdbcdb2540 RCX: 0000000000002000
RDX: 0000000000000001 RSI: ffff9cbdbcdb2540 RDI: ffff9cbdbcdb2664
RBP: ffffb24645f4fdc0 R8: 0000000000ffff10 R9: 0000000000000000
R10: 0000000000000402 R11: 0000000000000005 R12: ffff9cbd04742708
R13: 0000000000000000 R14: ffff9cbdbcdb2540 R15: ffff9cbd04742708
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#12 [ffffb24645f4fda0] softnet_seq_show at ffffffffb19a2e4f
#13 [ffffb24645f4fe28] proc_reg_read_iter at ffffffffb1404c62
#14 [ffffb24645f4fe48] vfs_read at ffffffffb1377daf
#15 [ffffb24645f4fee0] ksys_read at ffffffffb137885c
#16 [ffffb24645f4ff18] __x64_sys_read at ffffffffb13788f9
#17 [ffffb24645f4ff28] x64_sys_call at ffffffffb10055db
#18 [ffffb24645f4ff38] do_syscall_64 at ffffffffb1b8b154
#19 [ffffb24645f4ff50] entry_SYSCALL_64_after_hwframe at ffffffffb1c00126
Use lockless accessors insted.
Signed-off-by: Alexey Makhalov <alexey.makhalov@broadcom.com>
Change-Id: I9f6d5b077157686f50407351321e333a4c1b88ac
Reviewed-on: http://photon-gerrit.lvn.broadcom.net/c/photon/+/25235
Tested-by: Shreenidhi Shedi <shreenidhi.shedi@broadcom.com>
Reviewed-by: Shreenidhi Shedi <shreenidhi.shedi@broadcom.com>
Reviewed-by: Keerthana K <keerthana.kalyanasundaram@broadcom.com>
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Cleaned up the syntax to use GitHub's Markdown
Arranged the table on the bottom to look nice even in pure text