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https://github.com/checkpoint-restore/criu.git
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e3eaf90e8e
In commit 97cfb707 we extended scm_fdset structure
up to 7K thus we need to increase the parasite stack
size enough to hold it. It was not noticed simply because
we were poking arguments area of memory.
The memory map of args and stack for parasite look like
+-----------+ min address
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| arguments | v (8K)
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+-----------+
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| stack | ^ (16K)
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+-----------+ max address
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
108 lines
2.1 KiB
C
108 lines
2.1 KiB
C
#ifndef CR_PARASITE_H_
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#define CR_PARASITE_H_
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#define PARASITE_STACK_SIZE (16 << 10)
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#define PARASITE_ARG_SIZE 8196
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#define PARASITE_MAX_SIZE (64 << 10)
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#ifndef __ASSEMBLY__
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#include <sys/un.h>
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#include "image.h"
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#include "util-net.h"
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#include "../protobuf/vma.pb-c.h"
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#define __head __used __section(.head.text)
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enum {
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PARASITE_CMD_INIT,
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PARASITE_CMD_SET_LOGFD,
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PARASITE_CMD_FINI,
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PARASITE_CMD_DUMPPAGES_INIT,
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PARASITE_CMD_DUMPPAGES,
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PARASITE_CMD_DUMPPAGES_FINI,
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PARASITE_CMD_DUMP_SIGACTS,
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PARASITE_CMD_DUMP_ITIMERS,
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PARASITE_CMD_DUMP_MISC,
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PARASITE_CMD_DUMP_TID_ADDR,
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PARASITE_CMD_DRAIN_FDS,
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PARASITE_CMD_GET_PROC_FD,
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PARASITE_CMD_MAX,
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};
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struct parasite_init_args {
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int h_addr_len;
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struct sockaddr_un h_addr;
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int p_addr_len;
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struct sockaddr_un p_addr;
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};
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struct parasite_dump_pages_args {
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VmaEntry vma_entry;
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unsigned long nrpages_dumped; /* how many pages are dumped */
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unsigned long nrpages_skipped;
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unsigned long nrpages_total;
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};
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struct parasite_dump_sa_args {
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rt_sigaction_t sas[SIGMAX];
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};
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struct parasite_dump_itimers_args {
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struct itimerval real;
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struct itimerval virt;
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struct itimerval prof;
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};
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/*
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* Misc sfuff, that is too small for separate file, but cannot
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* be read w/o using parasite
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*/
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struct parasite_dump_misc {
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unsigned int secbits;
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unsigned long brk;
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k_rtsigset_t blocked;
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u32 pid;
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u32 sid;
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u32 pgid;
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};
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struct parasite_dump_tid_info {
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unsigned int *tid_addr;
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int tid;
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};
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#define PARASITE_MAX_FDS (PAGE_SIZE / sizeof(int))
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struct parasite_drain_fd {
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int nr_fds;
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int fds[PARASITE_MAX_FDS];
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};
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static inline int drain_fds_size(struct parasite_drain_fd *dfds)
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{
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return sizeof(dfds->nr_fds) + dfds->nr_fds * sizeof(dfds->fds[0]);
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}
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/*
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* Some useful offsets
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*/
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#define PARASITE_ARGS_ADDR(start) \
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((start) + parasite_blob_offset____export_parasite_args)
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#define PARASITE_CMD_ADDR(start) \
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((start) + parasite_blob_offset____export_parasite_cmd)
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#define PARASITE_HEAD_ADDR(start) \
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((start) + parasite_blob_offset____export_parasite_head_start)
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#endif /* !__ASSEMBLY__ */
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#endif /* CR_PARASITE_H_ */
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