Privilege Escalation via NtUserMessageCall win32k Kernel Pool Overflow ...... callback table has been modified: ..... object instead of using the internal slot. Protecting Commodity Operating Systems through Strong Kernel ... vulnerabilities, such as stack and heap buffer overflows [43, 40, 29], NULL .... performance penalty of page table manipulation upon kernel entry and exit [152]. ..... optimization pass, by calling GCC's register callback() function and ...... simplest scheme would be to divide physmap into RAM-sized slots, and map the entire. c - Why is executing callback functions in kernel mode bad ... Why is executing callback functions in kernel ... in those page tables? You got it. Want to zero out kernel memory and cause the ... answer to Stack Overflow! [v2,2/6] SUNRPC: Don't hold the transport lock when ... The backchannel request has no associated task, so it is going nowhere until we call xprt_complete_bc_request(). Signed-off-by: Trond Myklebust cdn.kernel.org To mitigate this issue, add an AMD handle_irq callback function, amd_pmu_handle_irq(), that will invoke the common x86_pmu_handle_irq() function and upon return perform some additional processing that will indicate if the NMI has been handled or would have been handled had an earlier NMI not handled the overflowed PMC. RapidIO Subsystem Guide — The Linux Kernel documentation A specific routing table can be selected using the table argument if a switch has per port routing tables or the standard (or global) table may be used by passing RIO_GLOBAL_TABLE in table. Returns 0 on success or -EINVAL on failure. int rio_route_clr_table (struct rio_dev * rdev, u16 table, int lock) ¶ Clear a switch routing table. Parameters SuperH Interfaces Guide - kernelnewbies.org that was previously inserted into the kernel page table and discards the UTLB translation. 1.2. SH-5 1.2.1. TLB Interfaces sh64_teardown_tlb_slot LINUX Kernel Hackers ManualApril 2009 Name ... maple_getcond_callback LINUX Kernel Hackers ManualApril 2009 Name CodeMachine - Article - Kernel Callback Functions Kernel Callback Functions. ... (TLS) but is limited to a single slot per thread. A kernel mode driver can dynamically allocate thread specific context, store it in KTHREAD.LegoData, retrieve it as required and then free it in the lego notify routine. The callback registered by PsSetLegoNotifyRoutine() is stored in the kernel global ... Linux-Kernel Archive: [PATCH 2/3] Add swap slot free ... This callback is required when RAM based devices are used as swap disks. One such device is ramzswap which is used as compressed in-memory swap disk. For such devices, we need a callback as soon as a swap slot is no longer used to allow freeing memory allocated for this slot. Without this The issue seems to be the invocation of block layer API (generic_make_request) from the softirq context which is actually the callback of another IO or a XOR operation. Apparently, the callbacks are being invoked in timer context, as it's seen from the call stack, which is an interrupt and we cannot sleep in interrupt context, hence the bug. xprtsock.c source code [linux/net/sunrpc/xprtsock.c ... hell on Earth: From Browser to System Compromise - Black Hat Privilege Escalation via NtUserMessageCall win32k Kernel Pool Overflow ...... callback table has been modified: ..... object instead of using the internal slot. Protecting Commodity Operating Systems through Strong Kernel ... vulnerabilities, such as stack and heap buffer overflows [43, 40, 29], NULL .... performance penalty of page table manipulation upon kernel entry and exit [152]. ..... optimization pass, by calling GCC's register callback() function and ...... simplest scheme would be to divide physmap into RAM-sized slots, and map the entire. c - Why is executing callback functions in kernel mode bad ... Why is executing callback functions in kernel ... in those page tables? You got it. Want to zero out kernel memory and cause the ... answer to Stack Overflow! [v2,2/6] SUNRPC: Don't hold the transport lock when ... Windows XP is the successor to both Windows 2000 and Windows Me, and is the first and last consumer-oriented operating system produced by Microsoft to be built on the Windows NT kernel and architecture. Linux Remote-Boot mini-Howto:607695 – NFS blocks after "Callback slot table overflowed ...
Apr 9 17:05:30 nfs-client kernel: Callback slot table overflowed Apr 9 17:05:30 nfs-client kernel: Callback slot table overflowed ... The job I had that was writing to this NFS file system showed a 35 second gap (matches the grace time):
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Kernel - Erlang
Kernel callback slot table overflowed
If you have any suggestions I'm happy to try them, but sadly I cannot reproduce this at will. I know I can drop back to NFSv4.0 (which worked for years before v4.1 was enabled) but I was keeping things this way in the hope of being able to debug a bit. Re: [PATCHv2] SUNRPC: Fix a race in xs_reset_transport ...